🎈 Public Lab: Revisions for 'Spectrometer'

Revisions for Spectrometer

138	warren	December 18, 2012 15:38 \| about 12 years ago Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Public Lab Store Quick Links contributed open-source Spectrometry research Foldable Mini-Spectrometer Desktop Spectrometry Kit Spectral Workbench - software for using your DIY spectrometer Spectral Workbench usage - support for our spectrometry software DIY Spectrometry mailing list Subscribe to the "plots-spectrometry" mailing list for support, discussion, and to share your work: Purpose Chemists use expensive tools called spectrometers (there are several kinds) to analyze unknown solid or liquid samples. We are working on a cheap version which we hope to use to identify oil contamination in water and soil, as well as a range of other possible toxins. Spectrometers can also be used to identify species of plants or crop diseases, assess plumes from smokestacks, and have many other applications. What's spectrometry? What we perceive as a single color consists of multiple blended colors- just as green paint can be made from mixing yellow and blue paint. A spectrometer is a device that splits light into the various colors it is composed of, which we otherwise cannot distinguish with the naked eye. By viewing a substance through a spectrometer, one can distinguish the exact mixture of colors, which correspond to specific wavelengths of light. These can be compared to other spectra to help identify the sample. Make a spectrometer The PLOTS spectrometer is a Do-it-Yourself tool made from simple materials: stiff black card paper a clean DVD-R an HD USB webcam a Type LB conduit body double-sided foam tape and a box cutter/x-acto knife The DVD's tightly packed grooves act as a diffraction grating -- basically a prism. Spectrometer construction » The above link offers step-by-step instructions on making your own spectrometer. It features: around 400-900 nanometer range, maybe wider (what you can see with the naked eye, plus some infrared) 5-10 nm spectral resolution 20-30 samples per second ~ $15 in materials < 1 hour construction time open-source software Though these specs look pretty good, they still need to be compared rigorously with a traditional laboratory spectrometer. Are you interested in trying it? Uses for open source spectrometry As we ship to the different Kickstarter backers, we are posting how people have said they plan to use their spectrometers. One group of toxins common to fossil fuel contamination are PAHs, polycyclic aromatic hydrocarbons, which are generally carcinogenic. We're trying to develop a step-by-step experimental procedure to prepare a soil or water sample, shine a full-spectrum light (like a halogen lamp) through it, and detect the missing wavelengths. If you're interested, please chip in to develop and document a consistent way to read samples here: Spectrometer usage » We're also putting together a list of research (some of it our own) to draw upon in developing spectral analysis techniques for anything from soil to grapes to coffee: Spectral Analysis » Online spectral analysis Along with the physical tool itself, the PLOTS community has also developed a software suite and online database which allows anyone to upload their data and work with others to try to interpret it. These tools are early prototypes and we're looking for help developing them. Finally, a FAQ with some insights about actually using your spectrometer can be found here: Spectrometer FAQ Goals This is an early-stage, speculative project, but our goals include: Identify a contaminant in a sample, like a polycyclic aromatic hydrocarbon -- i.e. naphthalene, anthracene or tetracene. Tetracene has absorption bands well into the visible range. Identify a plant species by its spectrum. (see this helpful paper by Zomer et al) Or perhaps a mineral, using the ASTER spectral library Try to identify something in a smokestack plume, like a refinery plume Older designs Several older designs have been documented on this site. Guides have been made showing you how to make some of these; they include: plots-spectrometer-guide-small.pdf - by the PLOTS team for our workshop at the Whitney Museum Make a Spectrometer.pdf - by Alex McCarthy partsandcrafts-spectrometer-guide.pdf - by Parts and Crafts (21mb, print quality)	Revert
137	Shannon	December 17, 2012 16:45 \| about 12 years ago Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Public Lab Store Quick Links contributed open-source Spectrometry research Foldable Mini-Spectrometer Desktop Spectrometry Kit Spectral Workbench - software for using your DIY spectrometer Spectral Workbench usage - support for our spectrometry software DIY Spectrometry mailing list Subscribe to the "plots-spectrometry" mailing list for support, discussion, and to share your work: Purpose Chemists use expensive tools called spectrometers (there are several kinds) to analyze unknown solid or liquid samples. We are working on a cheap version which we hope to use to identify oil contamination in water and soil, as well as a range of other possible toxins. Spectrometers can also be used to identify species of plants or crop diseases, assess plumes from smokestacks, and have many other applications. What's spectrometry? What we perceive as a single color consists of multiple blended colors- just as green paint can be made from mixing yellow and blue paint. A spectrometer is a device that splits light into the various colors it is composed of, which we otherwise cannot distinguish with the naked eye. By viewing a substance through a spectrometer, one can distinguish the exact mixture of colors, which correspond to specific wavelengths of light, that make up the perceived color of the sample. Make a spectrometer The PLOTS spectrometer is a Do-it-Yourself tool made from simple materials: stiff black card paper a clean DVD-R an HD USB webcam a Type LB conduit body double-sided foam tape and a box cutter/x-acto knife The DVD's tightly packed grooves act as a diffraction grating -- basically a prism. When light enters, the different wavelengths of light are bent to different degrees, forming a rainbow -- a spectrum. Spectrometer construction » The above link offers step-by-step instructions on making your own spectrometer. It features: around 400-900 nanometer range, maybe wider (what you can see with the naked eye, plus some infrared) 5-10 nm spectral resolution 20-30 samples per second ~ $10 in materials < 1 hour construction time open-source software Though these specs look pretty good, they still need to be compared rigorously with a traditional laboratory spectrometer. Are you interested in trying it? Uses for open source spectrometry As we ship to the different Kickstarter backers, we are posting how people have said they plan to use their spectrometers. One group of toxins common to fossil fuel contamination are PAHs, polycyclic aromatic hydrocarbons, which are generally carcinogenic. We're trying to develop a step-by-step experimental procedure to prepare a soil or water sample, shine a full-spectrum light (like a halogen lamp) through it, and detect the missing wavelengths. If you're interested, please chip in to develop and document a consistent way to read samples here: Spectrometer usage » We're also putting together a list of research (some of it our own) to draw upon in developing spectral analysis techniques for anything from soil to grapes to coffee: Spectral Analysis » Online spectral analysis Along with the physical tool itself, the PLOTS community has also developed a software suite and online spectrum sharing website which allows anyone to upload their data and work with others to try to interpret it. These tools are early prototypes and we're looking for help developing them. Finally, a FAQ with some insights about actually using your spectrometer can be found here: Spectrometer FAQ Goals This is an early-stage, speculative project, but our goals include: Identify a contaminant in a sample, like a polycyclic aromatic hydrocarbon -- i.e. naphthalene, anthracene or tetracene. Tetracene has absorption bands well into the visible range. Identify a plant species by its spectrum. (see this helpful paper by Zomer et al) Or perhaps a mineral, using the ASTER spectral library Try to identify something in a smokestack plume, like a refinery plume Older designs Several older designs have been documented on this site. Guides have been made showing you how to make some of these; they include: plots-spectrometer-guide-small.pdf - by the PLOTS team for our workshop at the Whitney Museum Make a Spectrometer.pdf - by Alex McCarthy partsandcrafts-spectrometer-guide.pdf - by Parts and Crafts (21mb, print quality)	Revert
136	warren	December 17, 2012 00:30 \| about 12 years ago Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Public Lab Store Quick Links contributed open-source Spectrometry research Foldable Mini-Spectrometer Desktop Spectrometry Kit Spectral Workbench - software for using your DIY spectrometer Spectral Workbench usage - support for our spectrometry software DIY Spectrometry mailing list Subscribe to the "plots-spectrometry" mailing list for support, discussion, and to share your work: Purpose Chemists use expensive tools called spectrometers (there are several kinds) to analyze unknown solid or liquid samples. We are working on a cheap version which we hope to use to identify oil contamination in water and soil, as well as a range of other possible toxins. Spectrometers can also be used to identify species of plants or crop diseases, assess plumes from smokestacks, and have many other applications. What's spectrometry? What we perceive as a single color consists of multiple blended colors- just as green paint can be made from mixing yellow and blue paint. A spectrometer is a device that splits light into the various colors it is composed of, which we otherwise cannot distinguish with the naked eye. By viewing a substance through a spectrometer, one can distinguish the exact mixture of colors, which correspond to specific wavelengths of light, that make up the perceived color of the sample. Make a spectrometer The PLOTS spectrometer is a Do-it-Yourself tool made from simple materials: stiff black card paper a clean DVD-R an HD USB webcam a Type LB conduit body double-sided foam tape and a box cutter/x-acto knife The DVD's tightly packed grooves act as a diffraction grating -- basically a prism. When light enters, the different wavelengths of light are bent to different degrees, forming a rainbow -- a spectrum. Spectrometer construction » The above link offers step-by-step instructions on making your own spectrometer. It features: around 400-900 nanometer range, maybe wider (what you can see with the naked eye, plus some infrared) 5-10 nm spectral resolution 20-30 samples per second ~ $10 in materials < 1 hour construction time open-source software Though these specs look pretty good, they still need to be compared rigorously with a traditional laboratory spectrometer. Are you interested in trying it? Uses for open source spectrometry As we ship to the different Kickstarter backers, we are posting how people have said they plan to use their spectrometers: $10 backers: mini-foldable spectrometer $100 backers: mini-foldable, desktop and mobile $200 and $400 backers: mini-foldable, desktop, countertop and mobile ($400) and desktop 6-pack for $200 backers One group of toxins common to fossil fuel contamination are PAHs, polycyclic aromatic hydrocarbons, which are generally carcinogenic. We're trying to develop a step-by-step experimental procedure to prepare a soil or water sample, shine a full-spectrum light (like a halogen lamp) through it, and detect the missing wavelengths. If you're interested, please chip in to develop and document a consistent way to read samples here: Spectrometer usage » We're also putting together a list of research (some of it our own) to draw upon in developing spectral analysis techniques for anything from soil to grapes to coffee: Spectral Analysis » Online spectral analysis Along with the physical tool itself, the PLOTS community has also developed a software suite and online spectrum sharing website which allows anyone to upload their data and work with others to try to interpret it. These tools are early prototypes and we're looking for help developing them. Finally, a FAQ with some insights about actually using your spectrometer can be found here: Spectrometer FAQ Goals This is an early-stage, speculative project, but our goals include: Identify a contaminant in a sample, like a polycyclic aromatic hydrocarbon -- i.e. naphthalene, anthracene or tetracene. Tetracene has absorption bands well into the visible range. Identify a plant species by its spectrum. (see this helpful paper by Zomer et al) Or perhaps a mineral, using the ASTER spectral library Try to identify something in a smokestack plume, like a refinery plume Older designs Several older designs have been documented on this site. Guides have been made showing you how to make some of these; they include: plots-spectrometer-guide-small.pdf - by the PLOTS team for our workshop at the Whitney Museum Make a Spectrometer.pdf - by Alex McCarthy partsandcrafts-spectrometer-guide.pdf - by Parts and Crafts (21mb, print quality)	Revert
135	warren	December 16, 2012 18:26 \| about 12 years ago Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Public Lab Store Quick Links contributed open-source Spectrometry research Foldable Mini-Spectrometer Desktop Spectrometry Kit Spectral Workbench - software for using your DIY spectrometer Spectral Workbench usage - support for our spectrometry software Subscribe to the "plots-spectrometry" mailing list for support, discussion, and to share your work: Purpose Chemists use expensive tools called spectrometers (there are several kinds) to analyze unknown solid or liquid samples. We are working on a cheap version which we hope to use to identify oil contamination in water and soil, as well as a range of other possible toxins. Spectrometers can also be used to identify species of plants or crop diseases, assess plumes from smokestacks, and have many other applications. What's spectrometry? What we perceive as a single color consists of multiple blended colors- just as green paint can be made from mixing yellow and blue paint. A spectrometer is a device that splits light into the various colors it is composed of, which we otherwise cannot distinguish with the naked eye. By viewing a substance through a spectrometer, one can distinguish the exact mixture of colors, which correspond to specific wavelengths of light, that make up the perceived color of the sample. Make a spectrometer The PLOTS spectrometer is a Do-it-Yourself tool made from simple materials: stiff black card paper a clean DVD-R an HD USB webcam a Type LB conduit body double-sided foam tape and a box cutter/x-acto knife The DVD's tightly packed grooves act as a diffraction grating -- basically a prism. When light enters, the different wavelengths of light are bent to different degrees, forming a rainbow -- a spectrum. Spectrometer construction » The above link offers step-by-step instructions on making your own spectrometer. It features: around 400-900 nanometer range, maybe wider (what you can see with the naked eye, plus some infrared) 5-10 nm spectral resolution 20-30 samples per second ~ $10 in materials < 1 hour construction time open-source software Though these specs look pretty good, they still need to be compared rigorously with a traditional laboratory spectrometer. Are you interested in trying it? Uses for open source spectrometry As we ship to the different Kickstarter backers, we are posting how people have said they plan to use their spectrometers: $10 backers: mini-foldable spectrometer $100 backers: mini-foldable, desktop and mobile $200 and $400 backers: mini-foldable, desktop, countertop and mobile ($400) and desktop 6-pack for $200 backers One group of toxins common to fossil fuel contamination are PAHs, polycyclic aromatic hydrocarbons, which are generally carcinogenic. We're trying to develop a step-by-step experimental procedure to prepare a soil or water sample, shine a full-spectrum light (like a halogen lamp) through it, and detect the missing wavelengths. If you're interested, please chip in to develop and document a consistent way to read samples here: Spectrometer usage » We're also putting together a list of research (some of it our own) to draw upon in developing spectral analysis techniques for anything from soil to grapes to coffee: Spectral Analysis » Online spectral analysis Along with the physical tool itself, the PLOTS community has also developed a software suite and online spectrum sharing website which allows anyone to upload their data and work with others to try to interpret it. These tools are early prototypes and we're looking for help developing them. Finally, a FAQ with some insights about actually using your spectrometer can be found here: Spectrometer FAQ Goals This is an early-stage, speculative project, but our goals include: Identify a contaminant in a sample, like a polycyclic aromatic hydrocarbon -- i.e. naphthalene, anthracene or tetracene. Tetracene has absorption bands well into the visible range. Identify a plant species by its spectrum. (see this helpful paper by Zomer et al) Or perhaps a mineral, using the ASTER spectral library Try to identify something in a smokestack plume, like a refinery plume Older designs Several older designs have been documented on this site. Guides have been made showing you how to make some of these; they include: plots-spectrometer-guide-small.pdf - by the PLOTS team for our workshop at the Whitney Museum Make a Spectrometer.pdf - by Alex McCarthy partsandcrafts-spectrometer-guide.pdf - by Parts and Crafts (21mb, print quality)	Revert
134	warren	December 16, 2012 18:21 \| about 12 years ago Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Public Lab Store Quick Links contributed open-source Spectrometry research Foldable Mini-Spectrometer Desktop Spectrometry Kit Spectral Workbench - software for using your DIY spectrometer Spectral Workbench usage - support for our spectrometry software Subscribe to the "plots-spectrometry" mailing list for support, discussion, and to share your work: Purpose Chemists use expensive tools called spectrometers (there are several kinds) to analyze unknown solid or liquid samples. We are working on a cheap version which we hope to use to identify oil contamination in water and soil, as well as a range of other possible toxins. Spectrometers can also be used to identify species of plants or crop diseases, assess plumes from smokestacks, and have many other applications. What's spectrometry? What we perceive as a single color consists of multiple blended colors- just as green paint can be made from mixing yellow and blue paint. A spectrometer is a device that splits light into the various colors it is composed of, which we otherwise cannot distinguish with the naked eye. By viewing a substance through a spectrometer, one can distinguish the exact mixture of colors, which correspond to specific wavelengths of light, that make up the perceived color of the sample. Make a spectrometer The PLOTS spectrometer is a Do-it-Yourself tool made from simple materials: stiff black card paper a clean DVD-R an HD USB webcam a Type LB conduit body double-sided foam tape, a box cutter/x-acto knife The DVD's tightly packed grooves act as a diffraction grating -- basically a prism. When light enters, the different wavelengths of light are bent to different degrees, forming a rainbow -- a spectrum. Spectrometer construction » The above link offers step-by-step instructions on making your own spectrometer. It features: around 400-900 nanometer range, maybe wider (what you can see with the naked eye, plus some infrared) 5-10 nm spectral resolution 20-30 samples per second ~ $10 in materials < 1 hour construction time open-source software Though these specs look pretty good, they still need to be compared rigorously with a traditional laboratory spectrometer. Are you interested in trying it? Using your spectrometer As we ship to the different Kickstarter backers, we'll post notes on how people plan to use their spectrometer: $10 backers: mini-foldable spectrometer $100 backers: mini-foldable, desktop and mobile $200 and $400 backers: mini-foldable, desktop, countertop and mobile ($400) and desktop 6-pack for $200 backers One group of toxins common to fossil fuel contamination are PAHs, polycyclic aromatic hydrocarbons, which are generally carcinogenic. We're trying to develop a step-by-step experimental procedure to prepare a soil or water sample, shine a full-spectrum light (like a halogen lamp) through it, and detect the missing wavelengths. If you're interested, please chip in to develop and document a consistent way to read samples here: Spectrometer usage » We're also putting together a list of research (some of it our own) to draw upon in developing spectral analysis techniques for anything from soil to grapes to coffee: Spectral Analysis » Online spectral analysis Along with the physical tool itself, the PLOTS team has also developed a software suite and online spectrum sharing website which allows anyone to upload their data and work with others to try to interpret it. These tools are early prototypes and we're looking for help developing them. Finally, a FAQ with some insights about actually using your spectrometer can be found here: Spectrometer FAQ Goals This is an early-stage, speculative project, but our goals include: Identify a contaminant in a sample, like a polycyclic aromatic hydrocarbon -- i.e. naphthalene, anthracene or tetracene. Tetracene has absorption bands well into the visible range. Identify a plant species by its spectrum. (see this helpful paper by Zomer et al) Or perhaps a mineral, using the ASTER spectral library Try to identify something in a smokestack plume, like a refinery plume Older designs Several older designs have been documented on this site. Guides have been made showing you how to make some of these; they include: plots-spectrometer-guide-small.pdf - by the PLOTS team for our workshop at the Whitney Museum Make a Spectrometer.pdf - by Alex McCarthy partsandcrafts-spectrometer-guide.pdf - by Parts and Crafts (21mb, print quality)	Revert
133	warren	December 16, 2012 16:32 \| about 12 years ago Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Public Lab Store Quick Links contributed open-source Spectrometry research Foldable Mini-Spectrometer Desktop Spectrometry Kit Spectral Workbench - software for using your DIY spectrometer Spectral Workbench usage - support for our spectrometry software Subscribe to the "plots-spectrometry" mailing list for support, discussion, and to share your work: Purpose Chemists use expensive tools called spectrometers (there are several kinds) to analyze unknown solid or liquid samples. We are working on a cheap version which we hope to use to identify oil contamination in water and soil, as well as a range of other possible toxins. Spectrometers can also be used to identify species of plants or crop diseases, assess plumes from smokestacks, and have many other applications. What's spectrometry? What we perceive as a single color consists of multiple blended colors- just as green paint can be made from mixing yellow and blue paint. A spectrometer is a device that splits light into the various colors it is composed of, which we otherwise cannot distinguish with the naked eye. By viewing a substance through a spectrometer, one can distinguish the exact mixture of colors, which correspond to specific wavelengths of light, that make up the perceived color of the sample. Make a spectrometer The PLOTS spectrometer is a Do-it-Yourself tool made from simple materials: 4 1/8" x 8 3/8" stiff black card paper a clean DVD-R a webcam velcro, dark tape, a box cutter/x-acto knife The DVD's tightly packed grooves act as a diffraction grating -- basically a prism. When light enters, the different wavelengths of light are bent to different degrees, forming a rainbow -- a spectrum. Video spectrometer construction » The above link offers step-by-step instructions on making your own spectrometer. There is also a short tutorial on how to take out the filter on the webcam (optional). This design is released under the CERN Open Hardware License 1.1 (read agreement here). It features: around 400-900 nanometer range, maybe wider (what you can see with the naked eye, plus some infrared) 5-10 nm spectral resolution 20-30 samples per second ~ $10 in materials < 1 hour construction time open-source software Though these specs look pretty good, they still need to be compared rigorously with a traditional laboratory spectrometer. Are you interested in trying it? Using your spectrometer As we ship to the different Kickstarter backers, we'll post notes on how people plan to use their spectrometer: $10 backers: mini-foldable spectrometer $100 backers: mini-foldable, desktop and mobile $200 and $400 backers: mini-foldable, desktop, countertop and mobile ($400) and desktop 6-pack for $200 backers One group of toxins common to fossil fuel contamination are PAHs, polycyclic aromatic hydrocarbons, which are generally carcinogenic. We're trying to develop a step-by-step experimental procedure to prepare a soil or water sample, shine a full-spectrum light (like a halogen lamp) through it, and detect the missing wavelengths. If you're interested, please chip in to develop and document a consistent way to read samples here: Spectrometer usage » We're also putting together a list of research (some of it our own) to draw upon in developing spectral analysis techniques for anything from soil to grapes to coffee: Spectral Analysis » Online spectral analysis Along with the physical tool itself, the PLOTS team has also developed a software suite and online spectrum sharing website which allows anyone to upload their data and work with others to try to interpret it. These tools are early prototypes and we're looking for help developing them. Finally, a FAQ with some insights about actually using your spectrometer can be found here: Spectrometer FAQ Goals This is an early-stage, speculative project, but our goals include: Identify a contaminant in a sample, like a polycyclic aromatic hydrocarbon -- i.e. naphthalene, anthracene or tetracene. Tetracene has absorption bands well into the visible range. Identify a plant species by its spectrum. (see this helpful paper by Zomer et al) Or perhaps a mineral, using the ASTER spectral library Try to identify something in a smokestack plume, like a refinery plume Older designs Several older designs have been documented on this site. Guides have been made showing you how to make some of these; they include: plots-spectrometer-guide-small.pdf - by the PLOTS team for our workshop at the Whitney Museum Make a Spectrometer.pdf - by Alex McCarthy partsandcrafts-spectrometer-guide.pdf - by Parts and Crafts (21mb, print quality)	Revert
132	warren	December 16, 2012 16:25 \| about 12 years ago Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Public Lab Store Quick Links contributed open-source Spectrometry research Foldable Mini-Spectrometer Desktop Spectrometry Kit Spectral Workbench - software for using your DIY spectrometer Spectral Workbench usage - support for our spectrometry software Subscribe to the "plots-spectrometry" mailing list for support, discussion, and to share your work: Purpose Chemists use expensive tools called spectrometers (there are several kinds) to analyze unknown solid or liquid samples. We are working on a cheap version which we hope to use to identify oil contamination in water and soil*, as well as a range of other possible toxins. Spectrometers can also be used to identify species of plants or crop diseases, assess plumes from smokestacks, and have many other applications. What's spectrometry? What we perceive as a single color consists of multiple blended colors- just as green paint can be made from mixing yellow and blue paint. A spectrometer is a device that splits light into the various colors it is composed of, which we otherwise cannot distinguish with the naked eye. By viewing a substance through a spectrometer, one can distinguish the exact mixture of colors, which correspond to specific wavelengths of light, that make up the perceived color of the sample. Make a spectrometer The PLOTS spectrometer is a Do-it-Yourself tool made from simple materials: 4 1/8" x 8 3/8" stiff black card paper a clean DVD-R a webcam velcro, dark tape, a box cutter/x-acto knife The DVD's tightly packed grooves act as a diffraction grating -- basically a prism. When light enters, the different wavelengths of light are bent to different degrees, forming a rainbow -- a spectrum. Video spectrometer construction » The above link offers step-by-step instructions on making your own spectrometer. There is also a short tutorial on how to take out the filter on the webcam (optional). This design is released under the CERN Open Hardware License 1.1 (read agreement here). It features: around 400-900 nanometer range, maybe wider (what you can see with the naked eye, plus some infrared) 5-10 nm spectral resolution 20-30 samples per second ~ $10 in materials < 1 hour construction time open-source software Though these specs look pretty good, they still need to be compared rigorously with a traditional laboratory spectrometer. Are you interested in trying it? Using your spectrometer As we ship to the different Kickstarter backers, we'll post notes on how people plan to use their spectrometer: $10 backers: mini-foldable spectrometer $100 backers: mini-foldable, desktop and mobile $200 and $400 backers: mini-foldable, desktop, countertop and mobile ($400) and desktop 6-pack for $200 backers One group of toxins common to fossil fuel contamination are PAHs, polycyclic aromatic hydrocarbons, which are generally carcinogenic. We're trying to develop a step-by-step experimental procedure to prepare a soil or water sample, shine a full-spectrum light (like a halogen lamp) through it, and detect the missing wavelengths. If you're interested, please chip in to develop and document a consistent way to read samples here: Spectrometer usage » We're also putting together a list of research (some of it our own) to draw upon in developing spectral analysis techniques for anything from soil to grapes to coffee: Spectral Analysis » Online spectral analysis Along with the physical tool itself, the PLOTS team has also developed a software suite and online spectrum sharing website which allows anyone to upload their data and work with others to try to interpret it. These tools are early prototypes and we're looking for help developing them. Finally, a FAQ with some insights about actually using* your spectrometer can be found here: Spectrometer FAQ Goals This is an early-stage, speculative project, but our goals include: Identify a contaminant in a sample, like a polycyclic aromatic hydrocarbon -- i.e. naphthalene, anthracene or tetracene. Tetracene has absorption bands well into the visible range. Identify a plant species by its spectrum. (see this helpful paper by Zomer et al) Or perhaps a mineral, using the ASTER spectral library Try to identify something in a smokestack plume, like a refinery plume Older designs Several older designs have been documented on this site. Guides have been made showing you how to make some of these; they include: plots-spectrometer-guide-small.pdf - by the PLOTS team for our workshop at the Whitney Museum Make a Spectrometer.pdf - by Alex McCarthy partsandcrafts-spectrometer-guide.pdf - by Parts and Crafts (21mb, print quality)	Revert
131	warren	December 16, 2012 16:20 \| about 12 years ago Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Public Lab Store Quick Links Foldable Mini-Spectrometer Desktop Spectrometry Kit Spectral Workbench - software for using your DIY spectrometer Spectral Workbench usage - support for our spectrometry software Purpose Chemists use expensive tools called spectrometers (there are several kinds) to analyze unknown solid or liquid samples. We are working on a cheap version which we hope to use to identify oil contamination in water and soil, as well as a range of other possible toxins. Spectrometers can also be used to identify species of plants or crop diseases, assess plumes from smokestacks, and have many other applications. What's spectrometry? What we perceive as a single color consists of multiple blended colors- just as green paint can be made from mixing yellow and blue paint. A spectrometer is a device that splits light into the various colors it is composed of, which we otherwise cannot distinguish with the naked eye. By viewing a substance through a spectrometer, one can distinguish the exact mixture of colors, which correspond to specific wavelengths of light, that make up the perceived color of the sample. Make a spectrometer The PLOTS spectrometer is a Do-it-Yourself tool made from simple materials: 4 1/8" x 8 3/8" stiff black card paper a clean DVD-R a webcam velcro, dark tape, a box cutter/x-acto knife The DVD's tightly packed grooves act as a diffraction grating -- basically a prism. When light enters, the different wavelengths of light are bent to different degrees, forming a rainbow -- a spectrum. Video spectrometer construction » The above link offers step-by-step instructions on making your own spectrometer. There is also a short tutorial on how to take out the filter on the webcam (optional). This design is released under the CERN Open Hardware License 1.1 (read agreement here). It features: around 400-900 nanometer range, maybe wider (what you can see with the naked eye, plus some infrared) 5-10 nm spectral resolution 20-30 samples per second ~ $10 in materials < 1 hour construction time open-source software Though these specs look pretty good, they still need to be compared rigorously with a traditional laboratory spectrometer. Are you interested in trying it? Using your spectrometer As we ship to the different Kickstarter backers, we'll post notes on how people plan to use their spectrometer: $10 backers: mini-foldable spectrometer $100 backers: mini-foldable, desktop and mobile $200 and $400 backers: mini-foldable, desktop, countertop and mobile ($400) and desktop 6-pack for $200 backers One group of toxins common to fossil fuel contamination are PAHs, polycyclic aromatic hydrocarbons, which are generally carcinogenic. We're trying to develop a step-by-step experimental procedure to prepare a soil or water sample, shine a full-spectrum light (like a halogen lamp) through it, and detect the missing wavelengths. If you're interested, please chip in to develop and document a consistent way to read samples here: Spectrometer usage » We're also putting together a list of research (some of it our own) to draw upon in developing spectral analysis techniques for anything from soil to grapes to coffee: Spectral Analysis » Online spectral analysis Along with the physical tool itself, the PLOTS team has also developed a software suite and online spectrum sharing website which allows anyone to upload their data and work with others to try to interpret it. These tools are early prototypes and we're looking for help developing them. Finally, a FAQ with some insights about actually using your spectrometer can be found here: Spectrometer FAQ Goals This is an early-stage, speculative project, but our goals include: Identify a contaminant in a sample, like a polycyclic aromatic hydrocarbon -- i.e. naphthalene, anthracene or tetracene. Tetracene has absorption bands well into the visible range. Identify a plant species by its spectrum. (see this helpful paper by Zomer et al) Or perhaps a mineral, using the ASTER spectral library Try to identify something in a smokestack plume, like a refinery plume Older designs Several older designs have been documented on this site. Guides have been made showing you how to make some of these; they include: plots-spectrometer-guide-small.pdf - by the PLOTS team for our workshop at the Whitney Museum Make a Spectrometer.pdf - by Alex McCarthy partsandcrafts-spectrometer-guide.pdf - by Parts and Crafts (21mb, print quality)	Revert
130	warren	December 16, 2012 16:09 \| about 12 years ago Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Public Lab Store Quick Links Foldable Mini-Spectrometer Desktop Spectrometry Kit Spectral Workbench software for using your DIY spectrometer Spectral Workbench usage support for our spectrometry software Purpose Chemists use expensive tools called spectrometers (there are several kinds) to analyze unknown solid or liquid samples. We are working on a cheap version which we hope to use to identify oil contamination in water and soil, as well as a range of other possible toxins. Spectrometers can also be used to identify species of plants or crop diseases, assess plumes from smokestacks, and have many other applications. What's spectrometry? What we perceive as a single color consists of multiple blended colors- just as green paint can be made from mixing yellow and blue paint. A spectrometer is a device that splits light into the various colors it is composed of, which we otherwise cannot distinguish with the naked eye. By viewing a substance through a spectrometer, one can distinguish the exact mixture of colors, which correspond to specific wavelengths of light, that make up the perceived color of the sample. Make a spectrometer The PLOTS spectrometer is a Do-it-Yourself tool made from simple materials: 4 1/8" x 8 3/8" stiff black card paper a clean DVD-R a webcam velcro, dark tape, a box cutter/x-acto knife The DVD's tightly packed grooves act as a diffraction grating -- basically a prism. When light enters, the different wavelengths of light are bent to different degrees, forming a rainbow -- a spectrum. Video spectrometer construction » The above link offers step-by-step instructions on making your own spectrometer. There is also a short tutorial on how to take out the filter on the webcam (optional). This design is released under the CERN Open Hardware License 1.1 (read agreement here). It features: around 400-900 nanometer range, maybe wider (what you can see with the naked eye, plus some infrared) 5-10 nm spectral resolution 20-30 samples per second ~ $10 in materials < 1 hour construction time open-source software Though these specs look pretty good, they still need to be compared rigorously with a traditional laboratory spectrometer. Are you interested in trying it? Using your spectrometer As we ship to the different Kickstarter backers, we'll post notes on how people plan to use their spectrometer: $10 backers: mini-foldable spectrometer $100 backers: mini-foldable, desktop and mobile $200 and $400 backers: mini-foldable, desktop, countertop and mobile ($400) and desktop 6-pack for $200 backers One group of toxins common to fossil fuel contamination are PAHs, polycyclic aromatic hydrocarbons, which are generally carcinogenic. We're trying to develop a step-by-step experimental procedure to prepare a soil or water sample, shine a full-spectrum light (like a halogen lamp) through it, and detect the missing wavelengths. If you're interested, please chip in to develop and document a consistent way to read samples here: Spectrometer usage » We're also putting together a list of research (some of it our own) to draw upon in developing spectral analysis techniques for anything from soil to grapes to coffee: Spectral Analysis » Online spectral analysis Along with the physical tool itself, the PLOTS team has also developed a software suite and online spectrum sharing website which allows anyone to upload their data and work with others to try to interpret it. These tools are early prototypes and we're looking for help developing them. Finally, a FAQ with some insights about actually using your spectrometer can be found here: Spectrometer FAQ Goals This is an early-stage, speculative project, but our goals include: Identify a contaminant in a sample, like a polycyclic aromatic hydrocarbon -- i.e. naphthalene, anthracene or tetracene. Tetracene has absorption bands well into the visible range. Identify a plant species by its spectrum. (see this helpful paper by Zomer et al) Or perhaps a mineral, using the ASTER spectral library Try to identify something in a smokestack plume, like a refinery plume Older designs Several older designs have been documented on this site. Guides have been made showing you how to make some of these; they include: plots-spectrometer-guide-small.pdf - by the PLOTS team for our workshop at the Whitney Museum Make a Spectrometer.pdf - by Alex McCarthy partsandcrafts-spectrometer-guide.pdf - by Parts and Crafts (21mb, print quality)	Revert
129	mathew	December 16, 2012 08:52 \| about 12 years ago Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Public Lab Store Fold-Up Spectrometer Purpose Chemists use expensive tools called spectrometers (there are several kinds) to analyze unknown solid or liquid samples. We are working on a cheap version which we hope to use to identify oil contamination in water and soil, as well as a range of other possible toxins. Spectrometers can also be used to identify species of plants or crop diseases, assess plumes from smokestacks, and have many other applications. What's spectrometry? What we perceive as a single color consists of multiple blended colors- just as green paint can be made from mixing yellow and blue paint. A spectrometer is a device that splits light into the various colors it is composed of, which we otherwise cannot distinguish with the naked eye. By viewing a substance through a spectrometer, one can distinguish the exact mixture of colors, which correspond to specific wavelengths of light, that make up the perceived color of the sample. Make a spectrometer The PLOTS spectrometer is a Do-it-Yourself tool made from simple materials: 4 1/8" x 8 3/8" stiff black card paper a clean DVD-R a webcam velcro, dark tape, a box cutter/x-acto knife The DVD's tightly packed grooves act as a diffraction grating -- basically a prism. When light enters, the different wavelengths of light are bent to different degrees, forming a rainbow -- a spectrum. Video spectrometer construction » The above link offers step-by-step instructions on making your own spectrometer. There is also a short tutorial on how to take out the filter on the webcam (optional). This design is released under the CERN Open Hardware License 1.1 (read agreement here). It features: around 400-900 nanometer range, maybe wider (what you can see with the naked eye, plus some infrared) 5-10 nm spectral resolution 20-30 samples per second ~ $10 in materials < 1 hour construction time open-source software Though these specs look pretty good, they still need to be compared rigorously with a traditional laboratory spectrometer. Are you interested in trying it? Using your spectrometer As we ship to the different Kickstarter backers, we'll post notes on how people plan to use their spectrometer: $10 backers: mini-foldable spectrometer $100 backers: mini-foldable, desktop and mobile $200 and $400 backers: mini-foldable, desktop, countertop and mobile ($400) and desktop 6-pack for $200 backers One group of toxins common to fossil fuel contamination are PAHs, polycyclic aromatic hydrocarbons, which are generally carcinogenic. We're trying to develop a step-by-step experimental procedure to prepare a soil or water sample, shine a full-spectrum light (like a halogen lamp) through it, and detect the missing wavelengths. If you're interested, please chip in to develop and document a consistent way to read samples here: Spectrometer usage » We're also putting together a list of research (some of it our own) to draw upon in developing spectral analysis techniques for anything from soil to grapes to coffee: Spectral Analysis » Online spectral analysis Along with the physical tool itself, the PLOTS team has also developed a software suite and online spectrum sharing website which allows anyone to upload their data and work with others to try to interpret it. These tools are early prototypes and we're looking for help developing them. Finally, a FAQ with some insights about actually using your spectrometer can be found here: Spectrometer FAQ Goals This is an early-stage, speculative project, but our goals include: Identify a contaminant in a sample, like a polycyclic aromatic hydrocarbon -- i.e. naphthalene, anthracene or tetracene. Tetracene has absorption bands well into the visible range. Identify a plant species by its spectrum. (see this helpful paper by Zomer et al) Or perhaps a mineral, using the ASTER spectral library Try to identify something in a smokestack plume, like a refinery plume Older designs Several older designs have been documented on this site. Guides have been made showing you how to make some of these; they include: plots-spectrometer-guide-small.pdf - by the PLOTS team for our workshop at the Whitney Museum Make a Spectrometer.pdf - by Alex McCarthy partsandcrafts-spectrometer-guide.pdf - by Parts and Crafts (21mb, print quality)	Revert
128	mathew	December 16, 2012 08:47 \| about 12 years ago Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Public Lab Store Purpose Chemists use expensive tools called spectrometers (there are several kinds) to analyze unknown solid or liquid samples. We are working on a cheap version which we hope to use to identify oil contamination in water and soil, as well as a range of other possible toxins. Spectrometers can also be used to identify species of plants or crop diseases, assess plumes from smokestacks, and have many other applications. What's spectrometry? What we perceive as a single color consists of multiple blended colors- just as green paint can be made from mixing yellow and blue paint. A spectrometer is a device that splits light into the various colors it is composed of, which we otherwise cannot distinguish with the naked eye. By viewing a substance through a spectrometer, one can distinguish the exact mixture of colors, which correspond to specific wavelengths of light, that make up the perceived color of the sample. Make a spectrometer The PLOTS spectrometer is a Do-it-Yourself tool made from simple materials: 4 1/8" x 8 3/8" stiff black card paper a clean DVD-R a webcam velcro, dark tape, a box cutter/x-acto knife The DVD's tightly packed grooves act as a diffraction grating -- basically a prism. When light enters, the different wavelengths of light are bent to different degrees, forming a rainbow -- a spectrum. Video spectrometer construction » The above link offers step-by-step instructions on making your own spectrometer. There is also a short tutorial on how to take out the filter on the webcam (optional). This design is released under the CERN Open Hardware License 1.1 (read agreement here). It features: around 400-900 nanometer range, maybe wider (what you can see with the naked eye, plus some infrared) 5-10 nm spectral resolution 20-30 samples per second ~ $10 in materials < 1 hour construction time open-source software Though these specs look pretty good, they still need to be compared rigorously with a traditional laboratory spectrometer. Are you interested in trying it? Using your spectrometer As we ship to the different Kickstarter backers, we'll post notes on how people plan to use their spectrometer: $10 backers: mini-foldable spectrometer $100 backers: mini-foldable, desktop and mobile $200 and $400 backers: mini-foldable, desktop, countertop and mobile ($400) and desktop 6-pack for $200 backers One group of toxins common to fossil fuel contamination are PAHs, polycyclic aromatic hydrocarbons, which are generally carcinogenic. We're trying to develop a step-by-step experimental procedure to prepare a soil or water sample, shine a full-spectrum light (like a halogen lamp) through it, and detect the missing wavelengths. If you're interested, please chip in to develop and document a consistent way to read samples here: Spectrometer usage » We're also putting together a list of research (some of it our own) to draw upon in developing spectral analysis techniques for anything from soil to grapes to coffee: Spectral Analysis » Online spectral analysis Along with the physical tool itself, the PLOTS team has also developed a software suite and online spectrum sharing website which allows anyone to upload their data and work with others to try to interpret it. These tools are early prototypes and we're looking for help developing them. Finally, a FAQ with some insights about actually using your spectrometer can be found here: Spectrometer FAQ Goals This is an early-stage, speculative project, but our goals include: Identify a contaminant in a sample, like a polycyclic aromatic hydrocarbon -- i.e. naphthalene, anthracene or tetracene. Tetracene has absorption bands well into the visible range. Identify a plant species by its spectrum. (see this helpful paper by Zomer et al) Or perhaps a mineral, using the ASTER spectral library Try to identify something in a smokestack plume, like a refinery plume Older designs Several older designs have been documented on this site. Guides have been made showing you how to make some of these; they include: plots-spectrometer-guide-small.pdf - by the PLOTS team for our workshop at the Whitney Museum Make a Spectrometer.pdf - by Alex McCarthy partsandcrafts-spectrometer-guide.pdf - by Parts and Crafts (21mb, print quality)	Revert
127	Shannon	December 16, 2012 01:16 \| about 12 years ago Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Breadpig Store Purpose Chemists use expensive tools called spectrometers (there are several kinds) to analyze unknown solid or liquid samples. We are working on a cheap version which we hope to use to identify oil contamination in water and soil, as well as a range of other possible toxins. Spectrometers can also be used to identify species of plants or crop diseases, assess plumes from smokestacks, and have many other applications. What's spectrometry? What we perceive as a single color consists of multiple blended colors- just as green paint can be made from mixing yellow and blue paint. A spectrometer is a device that splits light into the various colors it is composed of, which we otherwise cannot distinguish with the naked eye. By viewing a substance through a spectrometer, one can distinguish the exact mixture of colors, which correspond to specific wavelengths of light, that make up the perceived color of the sample. Make a spectrometer The PLOTS spectrometer is a Do-it-Yourself tool made from simple materials: 4 1/8" x 8 3/8" stiff black card paper a clean DVD-R a webcam velcro, dark tape, a box cutter/x-acto knife The DVD's tightly packed grooves act as a diffraction grating -- basically a prism. When light enters, the different wavelengths of light are bent to different degrees, forming a rainbow -- a spectrum. Video spectrometer construction » The above link offers step-by-step instructions on making your own spectrometer. There is also a short tutorial on how to take out the filter on the webcam (optional). This design is released under the CERN Open Hardware License 1.1 (read agreement here). It features: around 400-900 nanometer range, maybe wider (what you can see with the naked eye, plus some infrared) 5-10 nm spectral resolution 20-30 samples per second ~ $10 in materials < 1 hour construction time open-source software Though these specs look pretty good, they still need to be compared rigorously with a traditional laboratory spectrometer. Are you interested in trying it? Using your spectrometer As we ship to the different Kickstarter backers, we'll post notes on how people plan to use their spectrometer: $10 backers: mini-foldable spectrometer $100 backers: mini-foldable, desktop and mobile $200 and $400 backers: mini-foldable, desktop, countertop and mobile ($400) and desktop 6-pack for $200 backers One group of toxins common to fossil fuel contamination are PAHs, polycyclic aromatic hydrocarbons, which are generally carcinogenic. We're trying to develop a step-by-step experimental procedure to prepare a soil or water sample, shine a full-spectrum light (like a halogen lamp) through it, and detect the missing wavelengths. If you're interested, please chip in to develop and document a consistent way to read samples here: Spectrometer usage » We're also putting together a list of research (some of it our own) to draw upon in developing spectral analysis techniques for anything from soil to grapes to coffee: Spectral Analysis » Online spectral analysis Along with the physical tool itself, the PLOTS team has also developed a software suite and online spectrum sharing website which allows anyone to upload their data and work with others to try to interpret it. These tools are early prototypes and we're looking for help developing them. Finally, a FAQ with some insights about actually using your spectrometer can be found here: Spectrometer FAQ Goals This is an early-stage, speculative project, but our goals include: Identify a contaminant in a sample, like a polycyclic aromatic hydrocarbon -- i.e. naphthalene, anthracene or tetracene. Tetracene has absorption bands well into the visible range. Identify a plant species by its spectrum. (see this helpful paper by Zomer et al) Or perhaps a mineral, using the ASTER spectral library Try to identify something in a smokestack plume, like a refinery plume Older designs Several older designs have been documented on this site. Guides have been made showing you how to make some of these; they include: plots-spectrometer-guide-small.pdf - by the PLOTS team for our workshop at the Whitney Museum Make a Spectrometer.pdf - by Alex McCarthy partsandcrafts-spectrometer-guide.pdf - by Parts and Crafts (21mb, print quality)	Revert
126	Shannon	December 13, 2012 21:01 \| about 12 years ago Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Breadpig Store Purpose Chemists use expensive tools called spectrometers (there are several kinds) to analyze unknown solid or liquid samples. We are working on a cheap version which we hope to use to identify oil contamination in water and soil, as well as a range of other possible toxins. Spectrometers can also be used to identify species of plants or crop diseases, assess plumes from smokestacks, and have many other applications. What's spectrometry? What we perceive as a single color consists of multiple blended colors- just as green paint can be made from mixing yellow and blue paint. A spectrometer is a device that splits light into the various colors it is composed of, which we otherwise cannot distinguish with the naked eye. By viewing a substance through a spectrometer, one can distinguish the exact mixture of colors, which correspond to specific wavelengths of light, that make up the perceived color of the sample. Make a spectrometer The PLOTS spectrometer is a Do-it-Yourself tool made from simple materials: 4 1/8" x 8 3/8" stiff black card paper a clean DVD-R a webcam velcro, dark tape, a box cutter/x-acto knife The DVD's tightly packed grooves act as a diffraction grating -- basically a prism. When light enters, the different wavelengths of light are bent to different degrees, forming a rainbow -- a spectrum. Video spectrometer construction » The above link offers step-by-step instructions on making your own spectrometer. There is also a short tutorial on how to take out the filter on the webcam (optional). This design is released under the CERN Open Hardware License 1.1 (read agreement here). It features: around 400-900 nanometer range, maybe wider (what you can see with the naked eye, plus some infrared) 5-10 nm spectral resolution 20-30 samples per second ~ $10 in materials < 1 hour construction time open-source software Though these specs look pretty good, they still need to be compared rigorously with a traditional laboratory spectrometer. Are you interested in trying it? Using your spectrometer As we ship to the different Kickstarter backers, we'll post notes on how people plan to use their spectrometer: $10 backers: mini-foldable spectrometer $200 and $400 backers: mini-foldable, desktop, countertop and mobile ($400) and desktop 6-pack for $200 backers One group of toxins common to fossil fuel contamination are PAHs, polycyclic aromatic hydrocarbons, which are generally carcinogenic. We're trying to develop a step-by-step experimental procedure to prepare a soil or water sample, shine a full-spectrum light (like a halogen lamp) through it, and detect the missing wavelengths. If you're interested, please chip in to develop and document a consistent way to read samples here: Spectrometer usage » We're also putting together a list of research (some of it our own) to draw upon in developing spectral analysis techniques for anything from soil to grapes to coffee: Spectral Analysis » Online spectral analysis Along with the physical tool itself, the PLOTS team has also developed a software suite and online spectrum sharing website which allows anyone to upload their data and work with others to try to interpret it. These tools are early prototypes and we're looking for help developing them. Finally, a FAQ with some insights about actually using your spectrometer can be found here: Spectrometer FAQ Goals This is an early-stage, speculative project, but our goals include: Identify a contaminant in a sample, like a polycyclic aromatic hydrocarbon -- i.e. naphthalene, anthracene or tetracene. Tetracene has absorption bands well into the visible range. Identify a plant species by its spectrum. (see this helpful paper by Zomer et al) Or perhaps a mineral, using the ASTER spectral library Try to identify something in a smokestack plume, like a refinery plume Older designs Several older designs have been documented on this site. Guides have been made showing you how to make some of these; they include: plots-spectrometer-guide-small.pdf - by the PLOTS team for our workshop at the Whitney Museum Make a Spectrometer.pdf - by Alex McCarthy partsandcrafts-spectrometer-guide.pdf - by Parts and Crafts (21mb, print quality)	Revert
125	Shannon	December 13, 2012 21:00 \| about 12 years ago Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Breadpig Store Purpose Chemists use expensive tools called spectrometers (there are several kinds) to analyze unknown solid or liquid samples. We are working on a cheap version which we hope to use to identify oil contamination in water and soil, as well as a range of other possible toxins. Spectrometers can also be used to identify species of plants or crop diseases, assess plumes from smokestacks, and have many other applications. What's spectrometry? What we perceive as a single color consists of multiple blended colors- just as green paint can be made from mixing yellow and blue paint. A spectrometer is a device that splits light into the various colors it is composed of, which we otherwise cannot distinguish with the naked eye. By viewing a substance through a spectrometer, one can distinguish the exact mixture of colors, which correspond to specific wavelengths of light, that make up the perceived color of the sample. Make a spectrometer The PLOTS spectrometer is a Do-it-Yourself tool made from simple materials: 4 1/8" x 8 3/8" stiff black card paper a clean DVD-R a webcam velcro, dark tape, a box cutter/x-acto knife The DVD's tightly packed grooves act as a diffraction grating -- basically a prism. When light enters, the different wavelengths of light are bent to different degrees, forming a rainbow -- a spectrum. Video spectrometer construction » The above link offers step-by-step instructions on making your own spectrometer. There is also a short tutorial on how to take out the filter on the webcam (optional). This design is released under the CERN Open Hardware License 1.1 (read agreement here). It features: around 400-900 nanometer range, maybe wider (what you can see with the naked eye, plus some infrared) 5-10 nm spectral resolution 20-30 samples per second ~ $10 in materials < 1 hour construction time open-source software Though these specs look pretty good, they still need to be compared rigorously with a traditional laboratory spectrometer. Are you interested in trying it? Using your spectrometer As we ship to the different Kickstarter backers, we'll post notes on how people plan to use their spectrometer: $10 backers: mini-foldable spectrometer $200 and $400 backers: mini-foldable, desktop, countertop and mobile ($400) and desktop 6-pack for $200 backers One group of toxins common to fossil fuel contamination are PAHs, polycyclic aromatic hydrocarbons, which are generally carcinogenic. We're trying to develop a step-by-step experimental procedure to prepare a soil or water sample, shine a full-spectrum light (like a halogen lamp) through it, and detect the missing wavelengths. If you're interested, please chip in to develop and document a consistent way to read samples here: Spectrometer usage » We're also putting together a list of research (some of it our own) to draw upon in developing spectral analysis techniques for anything from soil to grapes to coffee: Spectral Analysis » Online spectral analysis Along with the physical tool itself, the PLOTS team has also developed a software suite and online spectrum sharing website which allows anyone to upload their data and work with others to try to interpret it. These tools are early prototypes and we're looking for help developing them. Finally, a FAQ with some insights about actually using your spectrometer can be found here: Spectrometer FAQ Goals This is an early-stage, speculative project, but our goals include: Identify a contaminant in a sample, like a polycyclic aromatic hydrocarbon -- i.e. naphthalene, anthracene or tetracene. Tetracene has absorption bands well into the visible range. Identify a plant species by its spectrum. (see this helpful paper by Zomer et al) Or perhaps a mineral, using the ASTER spectral library Try to identify something in a smokestack plume, like a refinery plume Older designs Several older designs have been documented on this site. Guides have been made showing you how to make some of these; they include: plots-spectrometer-guide-small.pdf - by the PLOTS team for our workshop at the Whitney Museum Make a Spectrometer.pdf - by Alex McCarthy partsandcrafts-spectrometer-guide.pdf - by Parts and Crafts (21mb, print quality)	Revert
124	Shannon	December 12, 2012 17:50 \| about 12 years ago Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Breadpig Store Purpose Chemists use expensive tools called spectrometers (there are several kinds) to analyze unknown solid or liquid samples. We are working on a cheap version which we hope to use to identify oil contamination in water and soil, as well as a range of other possible toxins. Spectrometers can also be used to identify species of plants or crop diseases, assess plumes from smokestacks, and have many other applications. What's spectrometry? What we perceive as a single color consists of multiple blended colors- just as green paint can be made from mixing yellow and blue paint. A spectrometer is a device that splits light into the various colors it is composed of, which we otherwise cannot distinguish with the naked eye. By viewing a substance through a spectrometer, one can distinguish the exact mixture of colors, which correspond to specific wavelengths of light, that make up the perceived color of the sample. Make a spectrometer The PLOTS spectrometer is a Do-it-Yourself tool made from simple materials: 4 1/8" x 8 3/8" stiff black card paper a clean DVD-R a webcam velcro, dark tape, a box cutter/x-acto knife The DVD's tightly packed grooves act as a diffraction grating -- basically a prism. When light enters, the different wavelengths of light are bent to different degrees, forming a rainbow -- a spectrum. Video spectrometer construction » The above link offers step-by-step instructions on making your own spectrometer. There is also a short tutorial on how to take out the filter on the webcam (optional). This design is released under the CERN Open Hardware License 1.1 (read agreement here). It features: around 400-900 nanometer range, maybe wider (what you can see with the naked eye, plus some infrared) 5-10 nm spectral resolution 20-30 samples per second ~ $10 in materials < 1 hour construction time open-source software Though these specs look pretty good, they still need to be compared rigorously with a traditional laboratory spectrometer. Are you interested in trying it? Using your spectrometer As we ship to the different Kickstarter backers, we'll post notes on how people plan to use their spectrometer: $10 backers: mini-foldable spectrometer One group of toxins common to fossil fuel contamination are PAHs, polycyclic aromatic hydrocarbons, which are generally carcinogenic. We're trying to develop a step-by-step experimental procedure to prepare a soil or water sample, shine a full-spectrum light (like a halogen lamp) through it, and detect the missing wavelengths. If you're interested, please chip in to develop and document a consistent way to read samples here: Spectrometer usage » We're also putting together a list of research (some of it our own) to draw upon in developing spectral analysis techniques for anything from soil to grapes to coffee: Spectral Analysis » Online spectral analysis Along with the physical tool itself, the PLOTS team has also developed a software suite and online spectrum sharing website which allows anyone to upload their data and work with others to try to interpret it. These tools are early prototypes and we're looking for help developing them. Finally, a FAQ with some insights about actually using your spectrometer can be found here: Spectrometer FAQ Goals This is an early-stage, speculative project, but our goals include: Identify a contaminant in a sample, like a polycyclic aromatic hydrocarbon -- i.e. naphthalene, anthracene or tetracene. Tetracene has absorption bands well into the visible range. Identify a plant species by its spectrum. (see this helpful paper by Zomer et al) Or perhaps a mineral, using the ASTER spectral library Try to identify something in a smokestack plume, like a refinery plume Older designs Several older designs have been documented on this site. Guides have been made showing you how to make some of these; they include: plots-spectrometer-guide-small.pdf - by the PLOTS team for our workshop at the Whitney Museum Make a Spectrometer.pdf - by Alex McCarthy partsandcrafts-spectrometer-guide.pdf - by Parts and Crafts (21mb, print quality)	Revert
123	warren	December 08, 2012 00:28 \| about 12 years ago Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Breadpig Store Purpose Chemists use expensive tools called spectrometers (there are several kinds) to analyze unknown solid or liquid samples. We are working on a cheap version which we hope to use to identify oil contamination in water and soil, as well as a range of other possible toxins. Spectrometers can also be used to identify species of plants or crop diseases, assess plumes from smokestacks, and have many other applications. What's spectrometry? What we perceive as a single color consists of multiple blended colors- just as green paint can be made from mixing yellow and blue paint. A spectrometer is a device that splits light into the various colors it is composed of, which we otherwise cannot distinguish with the naked eye. By viewing a substance through a spectrometer, one can distinguish the exact mixture of colors, which correspond to specific wavelengths of light, that make up the perceived color of the sample. Make a spectrometer The PLOTS spectrometer is a Do-it-Yourself tool made from simple materials: 4 1/8" x 8 3/8" stiff black card paper a clean DVD-R a webcam velcro, dark tape, a box cutter/x-acto knife The DVD's tightly packed grooves act as a diffraction grating -- basically a prism. When light enters, the different wavelengths of light are bent to different degrees, forming a rainbow -- a spectrum. Video spectrometer construction » The above link offers step-by-step instructions on making your own spectrometer. There is also a short tutorial on how to take out the filter on the webcam (optional). This design is released under the CERN Open Hardware License 1.1 (read agreement here). It features: around 400-900 nanometer range, maybe wider (what you can see with the naked eye, plus some infrared) 5-10 nm spectral resolution 20-30 samples per second ~ $10 in materials < 1 hour construction time open-source software Though these specs look pretty good, they still need to be compared rigorously with a traditional laboratory spectrometer. Are you interested in trying it? Using your spectrometer One group of toxins common to fossil fuel contamination are PAHs, polycyclic aromatic hydrocarbons, which are generally carcinogenic. We're trying to develop a step-by-step experimental procedure to prepare a soil or water sample, shine a full-spectrum light (like a halogen lamp) through it, and detect the missing wavelengths. If you're interested, please chip in to develop and document a consistent way to read samples here: Spectrometer usage » We're also putting together a list of research (some of it our own) to draw upon in developing spectral analysis techniques for anything from soil to grapes to coffee: Spectral Analysis » Online spectral analysis Along with the physical tool itself, the PLOTS team has also developed a software suite and online spectrum sharing website which allows anyone to upload their data and work with others to try to interpret it. These tools are early prototypes and we're looking for help developing them. Finally, a FAQ with some insights about actually using your spectrometer can be found here: Spectrometer FAQ Goals This is an early-stage, speculative project, but our goals include: Identify a contaminant in a sample, like a polycyclic aromatic hydrocarbon -- i.e. naphthalene, anthracene or tetracene. Tetracene has absorption bands well into the visible range. Identify a plant species by its spectrum. (see this helpful paper by Zomer et al) Or perhaps a mineral, using the ASTER spectral library Try to identify something in a smokestack plume, like a refinery plume Older designs Several older designs have been documented on this site. Guides have been made showing you how to make some of these; they include: plots-spectrometer-guide-small.pdf - by the PLOTS team for our workshop at the Whitney Museum Make a Spectrometer.pdf - by Alex McCarthy partsandcrafts-spectrometer-guide.pdf - by Parts and Crafts (21mb, print quality)	Revert
122	warren	December 08, 2012 00:28 \| about 12 years ago Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Breadpig Store Purpose Chemists use expensive tools called spectrometers (there are several kinds) to analyze unknown solid or liquid samples. We are working on a cheap version which we hope to use to identify oil contamination in water and soil, as well as a range of other possible toxins. Spectrometers can also be used to identify species of plants or crop diseases, assess plumes from smokestacks, and have many other applications. What's spectrometry? What we perceive as a single color consists of multiple blended colors- just as green paint can be made from mixing yellow and blue paint. A spectrometer is a device that splits light into the various colors it is composed of, which we otherwise cannot distinguish with the naked eye. By viewing a substance through a spectrometer, one can distinguish the exact mixture of colors, which correspond to specific wavelengths of light, that make up the perceived color of the sample. Make a spectrometer The PLOTS spectrometer is a Do-it-Yourself tool made from simple materials: 4 1/8" x 8 3/8" stiff black card paper a clean DVD-R a webcam velcro, dark tape, a box cutter/x-acto knife The DVD's tightly packed grooves act as a diffraction grating -- basically a prism. When light enters, the different wavelengths of light are bent to different degrees, forming a rainbow -- a spectrum. Video spectrometer construction » The above link offers step-by-step instructions on making your own spectrometer. There is also a short tutorial on how to take out the filter on the webcam (optional). This design is released under the CERN Open Hardware License 1.1 (read agreement here). It features: around 400-900 nanometer range, maybe wider (what you can see with the naked eye, plus some infrared) 5-10 nm spectral resolution 20-30 samples per second ~ $10 in materials < 1 hour construction time open-source software Though these specs look pretty good, they still need to be compared rigorously with a traditional laboratory spectrometer. Are you interested in trying it? Using your spectrometer One group of toxins common to fossil fuel contamination are PAHs, polycyclic aromatic hydrocarbons, which are generally carcinogenic. We're trying to develop a step-by-step experimental procedure to prepare a soil or water sample, shine a full-spectrum light (like a halogen lamp) through it, and detect the missing wavelengths. If you're interested, please chip in to develop and document a consistent way to read samples here: Spectrometer usage » We're also putting together a list of research (some of it our own) to draw upon in developing spectral analysis techniques for anything from soil to grapes to coffee: Spectral Analysis » Online spectral analysis Along with the physical tool itself, the PLOTS team has also developed a software suite and online spectrum sharing website which allows anyone to upload their data and work with others to try to interpret it. These tools are early prototypes and we're looking for help developing them. Finally, a FAQ with some insights about actually using your spectrometer can be found here: Spectrometer FAQ Goals This is an early-stage, speculative project, but our goals include: Identify a contaminant in a sample, like a polycyclic aromatic hydrocarbon -- i.e. naphthalene, anthracene or tetracene. Tetracene has absorption bands well into the visible range. Identify a plant species by its spectrum. (see this helpful paper by Zomer et al) Or perhaps a mineral, using the ASTER spectral library Try to identify something in a smokestack plume, like a refinery plume Older designs Several older designs have been documented on this site. Guides have been made showing you how to make some of these; they include: plots-spectrometer-guide-small.pdf - by the PLOTS team for our workshop at the Whitney Museum Make a Spectrometer.pdf - by Alex McCarthy partsandcrafts-spectrometer-guide.pdf - by Parts and Crafts (21mb, print quality)	Revert
121	warren	December 08, 2012 00:27 \| about 12 years ago Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Breadpig Store Purpose Chemists use expensive tools called spectrometers (there are several kinds) to analyze unknown solid or liquid samples. We are working on a cheap version which we hope to use to identify oil contamination in water and soil, as well as a range of other possible toxins. Spectrometers can also be used to identify species of plants or crop diseases, assess plumes from smokestacks, and have many other applications. What's spectrometry? What we perceive as a single color consists of multiple blended colors- just as green paint can be made from mixing yellow and blue paint. A spectrometer is a device that splits light into the various colors it is composed of, which we otherwise cannot distinguish with the naked eye. By viewing a substance through a spectrometer, one can distinguish the exact mixture of colors, which correspond to specific wavelengths of light, that make up the perceived color of the sample. Make a spectrometer The PLOTS spectrometer is a Do-it-Yourself tool made from simple materials: 4 1/8" x 8 3/8" stiff black card paper a clean DVD-R a webcam velcro, dark tape, a box cutter/x-acto knife The DVD's tightly packed grooves act as a diffraction grating -- basically a prism. When light enters, the different wavelengths of light are bent to different degrees, forming a rainbow -- a spectrum. Video spectrometer construction » The above link offers step-by-step instructions on making your own spectrometer. There is also a short tutorial on how to take out the filter on the webcam (optional). This design is released under the CERN Open Hardware License 1.1 (read agreement here). It features: around 400-900 nanometer range, maybe wider (what you can see with the naked eye, plus some infrared) 5-10 nm spectral resolution 20-30 samples per second ~ $10 in materials < 1 hour construction time open-source software Though these specs look pretty good, they still need to be compared rigorously with a traditional laboratory spectrometer. Are you interested in trying it? Using your spectrometer One group of toxins common to fossil fuel contamination are PAHs, polycyclic aromatic hydrocarbons, which are generally carcinogenic. We're trying to develop a step-by-step experimental procedure to prepare a soil or water sample, shine a full-spectrum light (like a halogen lamp) through it, and detect the missing wavelengths. If you're interested, please chip in to develop and document a consistent way to read samples here: Spectrometer usage » We're also putting together a list of research (some of it our own) to draw upon in developing spectral analysis techniques for anything from soil to grapes to coffee: Spectral Analysis » Online spectral analysis Along with the physical tool itself, the PLOTS team has also developed a software suite and online spectrum sharing website which allows anyone to upload their data and work with others to try to interpret it. These tools are early prototypes and we're looking for help developing them. Finally, a FAQ with some insights about actually using your spectrometer can be found here: Spectrometer FAQ Goals This is an early-stage, speculative project, but our goals include: Identify a contaminant in a sample, like a polycyclic aromatic hydrocarbon -- i.e. naphthalene, anthracene or tetracene. Tetracene has absorption bands well into the visible range. Identify a plant species by its spectrum. (see this helpful paper by Zomer et al) Or perhaps a mineral, using the ASTER spectral library Try to identify something in a smokestack plume, like a refinery plume Older designs Several older designs have been documented on this site. Guides have been made showing you how to make some of these; they include: plots-spectrometer-guide-small.pdf - by the PLOTS team for our workshop at the Whitney Museum Make a Spectrometer.pdf - by Alex McCarthy partsandcrafts-spectrometer-guide.pdf - by Parts and Crafts (21mb, print quality)	Revert
120	warren	December 08, 2012 00:27 \| about 12 years ago Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Breadpig Store Purpose Chemists use expensive tools called spectrometers (there are several kinds) to analyze unknown solid or liquid samples. We are working on a cheap version which we hope to use to identify oil contamination in water and soil, as well as a range of other possible toxins. Spectrometers can also be used to identify species of plants or crop diseases, assess plumes from smokestacks, and have many other applications. What's spectrometry? What we perceive as a single color consists of multiple blended colors- just as green paint can be made from mixing yellow and blue paint. A spectrometer is a device that splits light into the various colors it is composed of, which we otherwise cannot distinguish with the naked eye. By viewing a substance through a spectrometer, one can distinguish the exact mixture of colors, which correspond to specific wavelengths of light, that make up the perceived color of the sample. Make a spectrometer The PLOTS spectrometer is a Do-it-Yourself tool made from simple materials: 4 1/8" x 8 3/8" stiff black card paper a clean DVD-R a webcam velcro, dark tape, a box cutter/x-acto knife The DVD's tightly packed grooves act as a diffraction grating -- basically a prism. When light enters, the different wavelengths of light are bent to different degrees, forming a rainbow -- a spectrum. Video spectrometer construction » The above link offers step-by-step instructions on making your own spectrometer. There is also a short tutorial on how to take out the filter on the webcam (optional). This design is released under the CERN Open Hardware License 1.1 (read agreement here). It features: around 400-900 nanometer range, maybe wider (what you can see with the naked eye, plus some infrared) 5-10 nm spectral resolution 20-30 samples per second ~ $10 in materials < 1 hour construction time open-source software Though these specs look pretty good, they still need to be compared rigorously with a traditional laboratory spectrometer. Are you interested in trying it? Using your spectrometer One group of toxins common to fossil fuel contamination are PAHs, polycyclic aromatic hydrocarbons, which are generally carcinogenic. We're trying to develop a step-by-step experimental procedure to prepare a soil or water sample, shine a full-spectrum light (like a halogen lamp) through it, and detect the missing wavelengths. If you're interested, please chip in to develop and document a consistent way to read samples here: Spectrometer usage » We're also putting together a list of research (some of it our own) to draw upon in developing spectral analysis techniques for anything from soil to grapes to coffee: Spectral Analysis » Online spectral analysis Along with the physical tool itself, the PLOTS team has also developed a software suite and online spectrum sharing website which allows anyone to upload their data and work with others to try to interpret it. These tools are early prototypes and we're looking for help developing them. Finally, a FAQ with some insights about actually using your spectrometer can be found here: Spectrometer FAQ Goals This is an early-stage, speculative project, but our goals include: Identify a contaminant in a sample, like a polycyclic aromatic hydrocarbon -- i.e. naphthalene, anthracene or tetracene. Tetracene has absorption bands well into the visible range. Identify a plant species by its spectrum. (see this helpful paper by Zomer et al) Or perhaps a mineral, using the ASTER spectral library Try to identify something in a smokestack plume, like a refinery plume Older designs Several older designs have been documented on this site. Guides have been made showing you how to make some of these; they include: plots-spectrometer-guide-small.pdf - by the PLOTS team for our workshop at the Whitney Museum Make a Spectrometer.pdf - by Alex McCarthy partsandcrafts-spectrometer-guide.pdf - by Parts and Crafts (21mb, print quality)	Revert
119	warren	December 08, 2012 00:26 \| about 12 years ago Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Breadpig Store Purpose Chemists use expensive tools called spectrometers (there are several kinds) to analyze unknown solid or liquid samples. We are working on a cheap version which we hope to use to identify oil contamination in water and soil, as well as a range of other possible toxins. Spectrometers can also be used to identify species of plants or crop diseases, assess plumes from smokestacks, and have many other applications. What's spectrometry? What we perceive as a single color consists of multiple blended colors- just as green paint can be made from mixing yellow and blue paint. A spectrometer is a device that splits light into the various colors it is composed of, which we otherwise cannot distinguish with the naked eye. By viewing a substance through a spectrometer, one can distinguish the exact mixture of colors, which correspond to specific wavelengths of light, that make up the perceived color of the sample. Make a spectrometer The PLOTS spectrometer is a Do-it-Yourself tool made from simple materials: 4 1/8" x 8 3/8" stiff black card paper a clean DVD-R a webcam velcro, dark tape, a box cutter/x-acto knife The DVD's tightly packed grooves act as a diffraction grating -- basically a prism. When light enters, the different wavelengths of light are bent to different degrees, forming a rainbow -- a spectrum. Video spectrometer construction » The above link offers step-by-step instructions on making your own spectrometer. There is also a short tutorial on how to take out the filter on the webcam (optional). This design is released under the CERN Open Hardware License 1.1 (read agreement here). It features: around 400-900 nanometer range, maybe wider (what you can see with the naked eye, plus some infrared) 5-10 nm spectral resolution 20-30 samples per second ~ $10 in materials < 1 hour construction time open-source software Though these specs look pretty good, they still need to be compared rigorously with a traditional laboratory spectrometer. Are you interested in trying it? Using your spectrometer One group of toxins common to fossil fuel contamination are PAHs, polycyclic aromatic hydrocarbons, which are generally carcinogenic. We're trying to develop a step-by-step experimental procedure to prepare a soil or water sample, shine a full-spectrum light (like a halogen lamp) through it, and detect the missing wavelengths. If you're interested, please chip in to develop and document a consistent way to read samples here: Spectrometer usage » We're also putting together a list of research (some of it our own) to draw upon in developing spectral analysis techniques for anything from soil to grapes to coffee: Spectral Analysis » Online spectral analysis Along with the physical tool itself, the PLOTS team has also developed a software suite and online spectrum sharing website which allows anyone to upload their data and work with others to try to interpret it. These tools are early prototypes and we're looking for help developing them. Finally, a FAQ with some insights about actually using your spectrometer can be found here: Spectrometer FAQ Goals This is an early-stage, speculative project, but our goals include: Identify a contaminant in a sample, like a polycyclic aromatic hydrocarbon -- i.e. naphthalene, anthracene or tetracene. Tetracene has absorption bands well into the visible range. Identify a plant species by its spectrum. (see this helpful paper by Zomer et al) Or perhaps a mineral, using the ASTER spectral library Try to identify something in a smokestack plume, like a refinery plume Older designs Several older designs have been documented on this site. Guides have been made showing you how to make some of these; they include: plots-spectrometer-guide-small.pdf - by the PLOTS team for our workshop at the Whitney Museum Make a Spectrometer.pdf - by Alex McCarthy partsandcrafts-spectrometer-guide.pdf - by Parts and Crafts (21mb, print quality)	Revert

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Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Public Lab Store

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Purpose

What's spectrometry?

Make a spectrometer

Uses for open source spectrometry

Online spectral analysis

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Older designs

Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Public Lab Store

Quick Links

DIY Spectrometry mailing list

Purpose

What's spectrometry?

Make a spectrometer

Uses for open source spectrometry

Online spectral analysis

Goals

Older designs

Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Public Lab Store

Quick Links

Purpose

What's spectrometry?

Make a spectrometer

Uses for open source spectrometry

Online spectral analysis

Goals

Older designs

Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Public Lab Store

Quick Links

Purpose

What's spectrometry?

Make a spectrometer

Using your spectrometer

Online spectral analysis

Goals

Older designs

Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Public Lab Store

Quick Links

Purpose

What's spectrometry?

Make a spectrometer

Using your spectrometer

Online spectral analysis

Goals

Older designs

Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Public Lab Store

Quick Links

Purpose

What's spectrometry?

Make a spectrometer

Using your spectrometer

Online spectral analysis

Goals

Older designs

Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Public Lab Store

Quick Links

Purpose

What's spectrometry?

Make a spectrometer

Using your spectrometer

Online spectral analysis

Goals

Older designs

Update: pre-order a spectrometer kit (including one which attaches to your mobile phone) now at the Public Lab Store

Quick Links

Purpose