Revisions for Thermal photography
| 67 CURRENT | warren |
September 25, 2017 19:25
| about 7 years ago
Thermal infrared cameras are designed to take photos or videos of heat (not to be confused with near infrared cameras). Some of these are tuned specifically for gases, and can be used to image #methane. ApplicationsThermal imaging can be used to document heat/AC leaks from insulation gaps on a building's facade, reveal warmer ground water inflows (either fresh or chemical-laden) or "thermal pollution" from industrial processes entering ocean-temperature waterbodies, as well as identify areas on the human body experiencing infection or stress (includes epidemiological applications). Specific models of FLIR brand cameras, known as the FLIR GasFinder (http://www.flir.com/ogi/display/?id=55671). See GasFinder below for more. Community applications so far include both a "heat-busters" program in East Harlem and a "forensic" water quality monitoring program in the Gowanus Canal. Questions[questions:thermal-photography] DIY ApproachesThere are three Do-It-Yourself prototypes in development to try to do this more cheaply than the off-the-shelf options. These projects were started a few years ago and may not be active:
ProblemWhy make a DIY version? "FLIR" cameras can produce images such as the one below, and are typically used to identify heat leaks, but even low-resolution FLIR cameras can cost thousands of dollars. The goal of these DIY thermal camera projects is to make this kind of investigation (and the potential savings) cheap, easy, fun, and informative for those of us without $10k in our pockets.
Activities[activities:thermal-photography] |
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| 66 | warren |
September 25, 2017 15:45
| about 7 years ago
Thermal infrared cameras are designed to take photos or videos of heat (not to be confused with near infrared cameras). Some of these are tuned specifically for gases, and can be used to image #methane. ApplicationsThermal imaging can be used to document heat/AC leaks from insulation gaps on a building's facade, reveal warmer ground water inflows (either fresh or chemical-laden) or "thermal pollution" from industrial processes entering ocean-temperature waterbodies, as well as identify areas on the human body experiencing infection or stress (includes epidemiological applications). Specific models of FLIR brand cameras, known as the FLIR GasFinder (http://www.flir.com/ogi/display/?id=55671). See GasFinder below for more. Community applications so far include both a "heat-busters" program in East Harlem and a "forensic" water quality monitoring program in the Gowanus Canal. Questions[questions:thermal-photography] DIY ApproachesThere are three Do-It-Yourself prototypes in development to try to do this more cheaply than the off-the-shelf options. These projects were started a few years ago and may not be active:
ProblemWhy make a DIY version? "FLIR" cameras can produce images such as the one below, and are typically used to identify heat leaks, but even low-resolution FLIR cameras can cost thousands of dollars. The goal of these DIY thermal camera projects is to make this kind of investigation (and the potential savings) cheap, easy, fun, and informative for those of us without $10k in our pockets.
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| 65 | sara |
August 27, 2015 00:38
| about 9 years ago
ApplicationsThermal imaging can be used to document heat/AC leaks from insulation gaps on a building's facade, reveal warmer ground water inflows (either fresh or chemical-laden) or "thermal pollution" from industrial processes entering ocean-temperature waterbodies, as well as identify areas on the human body experiencing infection or stress (includes epidemiological applications). Community applications so far include both a "heat-busters" program in East Harlem and a "forensic" water quality monitoring program in the Gowanus Canal. ApproachesThere are three prototypes in development:
Problem"FLIR" cameras can produce images such as the one below, and are typically used to identify heat leaks, but even low-resolution FLIR cameras can cost thousands of dollars. Our goal is to make this kind of investigation (and the potential savings) cheap, easy, fun, and informative for those of us without $10k in our pockets.
Thermal FlashlightThe first approach results in a kind of "light painting" -- a color heatmap overlaid directly onto the scene. This is the simplest, cheapest, and to date, most effective way we have developed of measuring heat leaks or cool leaks indoors and outdoors. Simply put, the "flashlight" puts out red light if it's pointed at something hot (default 75 deg F or more) and blue light if it's pointed at something cold *(default 60 deg F or less):
Using a Thermal FlashlightTo capture the light painting over time, we have been using timelapse photography or the prototype Public Lab Thermographer website (or its inspiration, GlowDoodle), as seen in the top image on this page.
Building your ownParts list For a Thermal Flashlight with 3.6 V Melexis Sensor and Common Anode LED.
Software Gist: https://gist.github.com/sdosemagen/1739961/ _Note: The goal of this file is to be a place to download everything without pursuing other links. If there are changes or updates please feel free to add and re-upload. If the file is missing anything, please comment below. You might notice that this is for the 5v Melexis, but it will work for either without issues. Alternative variations of the Flashlight can be made with a 5.5V Melexis Sensor and Common Cathode LED. For the 5.5 V sensor follow this diagram: http://publiclaboratory.org/notes/sara/2-7-2012/circuit-diagram-5v-melexis-sensor For the common cathode circuit board follow this diagram: http://publiclaboratory.org/notes/warren/2-11-2012/common-cathode-variant-thermal-flashlight-code Links to purchasing equipment: Consumable Parts:
If you are starting an electronics kit from scratch:
Cost: ~$40-$60 These research notes will be integrated into this page to provide instructions on building and using your own thermal flashlight:
Several meetups have been organized to build and test thermal flashlights, at RISD (Providence, RI) and in Brooklyn, NY. We are organizing one now in Somerville, MA:
Thermal flashlight heatmapsThermal Fishing BobThe thermal fishing bob project develops a DIY technology to visualize changes in water temperature, which can indicate water pollution via industrial sources or sewage The fishing bob is designed simply enough that anyone can build it and its components can be easily obtained from Home Depot and Radio Shack. Project Goals:To produce a cheaply made, easy to use piece of technology to track temperature changes in water. And to produce a product that can be easily altered to suit many innovative needs. Research URL’s:First iteration of the Thermal Fishing Bob developed in Sara Wylie’s class at RISD: http://publiclab.org/wiki/thermal-fishing-bob Second iteration of the Thermal Fishing Bob developed at 2014 Barnraising: http://www.publiclab.org/wiki/thermal-fishing-bob-barnraising http://www.publiclab.org/wiki/thermal-fishing-bob-plots-boston-toolshed-raising First long exposure pictures with the fishing bob: http://publiclab.org/wiki/thermal-fishing-bob-plots-boston-toolshed-raising http://publiclab.org/notes/Sara/04-23-2014/successful-thermal-fishing-bob-maps First Field test of the Fishing Bob Research Notes on development workshops MIT Research notes on towing the tool Next steps on developing the tool Building Your Own:How To GuideThe fishing bob’s tech is sealed within a waterproofed translucent container, a Koolaid mix container will do, with only the thermistor poking out the bottom (sealed around the edges with hot glue). The fishing bob is then wrapped in foam so that it floats, attached to a reel so it can be pulled, and dropped in the water. The thermistor reads changes in temperature and the LED within the fishing bob causes the fishing bob to change color in accordance with the temperature. The readings are recorded on the Arduino inside, which can then be read once it is plugged into a computer. While the fishing bob is being dragged across the water long exposure photos are being taken to create a “light painting” of the temperature gradient. One neat way to make these long exposure images is to use glowdoodle from MIT. Materials:
Thermal Fishing Bob Arduino Sketch Can Be Found Here:http://www.publiclab.org/wiki/thermal-fishing-bob-barnraising Next Steps:I am currently working with Sara Wylie on a project to make the thermal fishing bob towable behind a kayak. In previous testing the fishing bobs tended to submerge and become water damaged so we are working on a prototype that would be set into a floatation device. One concept is to wrap two fishing bobs in foam and set them into the legholes of a child’s floatie, duct taping them into place. The first test was successful, the fishing bobs stayed in place above the water and there was no noticeable water damage. A second idea is to attach three fishing bobs to a foam sled/boogie board with thermistors of differing lengths to take a 3D image of the thermal gradient. This idea has yet to be tested. A third idea is to utilize ideas from the coqui to transform the thermal fishing bob into a conductivity fishing bob. This idea is still in the brainstorming stage, but we will be building a prototype soon. Images:
Thermal plume along the Charles River
Fishing bob made at MIT workshop from a soda cup
Thermal fishing bob circuit
Fishing bobs ready to go
Fishing bob being lowered into the river
First prototype of towable fishing bob |
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| 64 | sara |
August 27, 2015 00:38
| about 9 years ago
ApplicationsThermal imaging can be used to document heat/AC leaks from insulation gaps on a building's facade, reveal warmer ground water inflows (either fresh or chemical-laden) or "thermal pollution" from industrial processes entering ocean-temperature waterbodies, as well as identify areas on the human body experiencing infection or stress (includes epidemiological applications). Community applications so far include both a "heat-busters" program in East Harlem and a "forensic" water quality monitoring program in the Gowanus Canal. ApproachesThere are three prototypes in development:
Problem"FLIR" cameras can produce images such as the one below, and are typically used to identify heat leaks, but even low-resolution FLIR cameras can cost thousands of dollars. Our goal is to make this kind of investigation (and the potential savings) cheap, easy, fun, and informative for those of us without $10k in our pockets.
Thermal FlashlightThe first approach results in a kind of "light painting" -- a color heatmap overlaid directly onto the scene. This is the simplest, cheapest, and to date, most effective way we have developed of measuring heat leaks or cool leaks indoors and outdoors. Simply put, the "flashlight" puts out red light if it's pointed at something hot (default 75 deg F or more) and blue light if it's pointed at something cold *(default 60 deg F or less):
Using a Thermal FlashlightTo capture the light painting over time, we have been using timelapse photography or the prototype Public Lab Thermographer website (or its inspiration, GlowDoodle), as seen in the top image on this page.
Building your ownParts list For a Thermal Flashlight with 3.6 V Melexis Sensor and Common Anode LED.
Software Gist: https://gist.github.com/sdosemagen/1739961/ _Note: The goal of this file is to be a place to download everything without pursuing other links. If there are changes or updates please feel free to add and re-upload. If the file is missing anything, please comment below. You might notice that this is for the 5v Melexis, but it will work for either without issues. Alternative variations of the Flashlight can be made with a 5.5V Melexis Sensor and Common Cathode LED. For the 5.5 V sensor follow this diagram: http://publiclaboratory.org/notes/sara/2-7-2012/circuit-diagram-5v-melexis-sensor For the common cathode circuit board follow this diagram: http://publiclaboratory.org/notes/warren/2-11-2012/common-cathode-variant-thermal-flashlight-code Links to purchasing equipment: Consumable Parts:
If you are starting an electronics kit from scratch:
Cost: ~$40-$60 These research notes will be integrated into this page to provide instructions on building and using your own thermal flashlight:
Several meetups have been organized to build and test thermal flashlights, at RISD (Providence, RI) and in Brooklyn, NY. We are organizing one now in Somerville, MA:
Thermal flashlight heatmapsThermal Fishing BobThe thermal fishing bob project develops a DIY technology to visualize changes in water temperature, which can indicate water pollution via industrial sources or sewage The fishing bob is designed simply enough that anyone can build it and its components can be easily obtained from Home Depot and Radio Shack. Project Goals:To produce a cheaply made, easy to use piece of technology to track temperature changes in water. And to produce a product that can be easily altered to suit many innovative needs. Research URL’s:First iteration of the Thermal Fishing Bob developed in Sara Wylie’s class at RISD: http://publiclab.org/wiki/thermal-fishing-bob Second iteration of the Thermal Fishing Bob developed at 2014 Barnraising: http://www.publiclab.org/wiki/thermal-fishing-bob-barnraising http://www.publiclab.org/wiki/thermal-fishing-bob-plots-boston-toolshed-raising First long exposure pictures with the fishing bob: http://publiclab.org/wiki/thermal-fishing-bob-plots-boston-toolshed-raising http://publiclab.org/notes/Sara/04-23-2014/successful-thermal-fishing-bob-maps First Field test of the Fishing Bob Research Notes on development workshops MIT Research notes on towing the tool Next steps on developing the tool Building Your Own:How To GuideThe fishing bob’s tech is sealed within a waterproofed translucent container, a Koolaid mix container will do, with only the thermistor poking out the bottom (sealed around the edges with hot glue). The fishing bob is then wrapped in foam so that it floats, attached to a reel so it can be pulled, and dropped in the water. The thermistor reads changes in temperature and the LED within the fishing bob causes the fishing bob to change color in accordance with the temperature. The readings are recorded on the Arduino inside, which can then be read once it is plugged into a computer. While the fishing bob is being dragged across the water long exposure photos are being taken to create a “light painting” of the temperature gradient. One neat way to make these long exposure images is to use glowdoodle from MIT. Materials:
Thermal Fishing Bob Arduino Sketch Can Be Found Here:http://www.publiclab.org/wiki/thermal-fishing-bob-barnraising Next Steps:I am currently working with Sara Wylie on a project to make the thermal fishing bob towable behind a kayak. In previous testing the fishing bobs tended to submerge and become water damaged so we are working on a prototype that would be set into a floatation device. One concept is to wrap two fishing bobs in foam and set them into the legholes of a child’s floatie, duct taping them into place. The first test was successful, the fishing bobs stayed in place above the water and there was no noticeable water damage. A second idea is to attach three fishing bobs to a foam sled/boogie board with thermistors of differing lengths to take a 3D image of the thermal gradient. This idea has yet to be tested. A third idea is to utilize ideas from the coqui to transform the thermal fishing bob into a conductivity fishing bob. This idea is still in the brainstorming stage, but we will be building a prototype soon. Images:
Thermal plume along the Charles River
Fishing bob made at MIT workshop from a soda cup
Thermal fishing bob circuit
Fishing bobs ready to go
Fishing bob being lowered into the river
First prototype of towable fishing bob |
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| 63 | kgrevera |
May 22, 2015 23:21
| over 9 years ago
ApplicationsThermal imaging can be used to document heat/AC leaks from insulation gaps on a building's facade, reveal warmer ground water inflows (either fresh or chemical-laden) or "thermal pollution" from industrial processes entering ocean-temperature waterbodies, as well as identify areas on the human body experiencing infection or stress (includes epidemiological applications). Community applications so far include both a "heat-busters" program in East Harlem and a "forensic" water quality monitoring program in the Gowanus Canal. ApproachesThere are three prototypes in development:
Problem"FLIR" cameras can produce images such as the one below, and are typically used to identify heat leaks, but even low-resolution FLIR cameras can cost thousands of dollars. Our goal is to make this kind of investigation (and the potential savings) cheap, easy, fun, and informative for those of us without $10k in our pockets.
Thermal FlashlightThe first approach results in a kind of "light painting" -- a color heatmap overlaid directly onto the scene. This is the simplest, cheapest, and to date, most effective way we have developed of measuring heat leaks or cool leaks indoors and outdoors. Simply put, the "flashlight" puts out red light if it's pointed at something hot (default 75 deg F or more) and blue light if it's pointed at something cold *(default 60 deg F or less):
Using a Thermal FlashlightTo capture the light painting over time, we have been using timelapse photography or the prototype Public Lab Thermographer website (or its inspiration, GlowDoodle), as seen in the top image on this page.
Building your ownParts list For a Thermal Flashlight with 3.6 V Melexis Sensor and Common Anode LED.
Software Gist: https://gist.github.com/sdosemagen/1739961/ _Note: The goal of this file is to be a place to download everything without pursuing other links. If there are changes or updates please feel free to add and re-upload. If the file is missing anything, please comment below. You might notice that this is for the 5v Melexis, but it will work for either without issues. Alternative variations of the Flashlight can be made with a 5.5V Melexis Sensor and Common Cathode LED. For the 5.5 V sensor follow this diagram: http://publiclaboratory.org/notes/sara/2-7-2012/circuit-diagram-5v-melexis-sensor For the common cathode circuit board follow this diagram: http://publiclaboratory.org/notes/warren/2-11-2012/common-cathode-variant-thermal-flashlight-code Links to purchasing equipment: Consumable Parts:
If you are starting an electronics kit from scratch:
Cost: ~$40-$60 These research notes will be integrated into this page to provide instructions on building and using your own thermal flashlight:
Several meetups have been organized to build and test thermal flashlights, at RISD (Providence, RI) and in Brooklyn, NY. We are organizing one now in Somerville, MA:
Thermal flashlight heatmapsThermal Fishing BobThe thermal fishing bob project develops a DIY technology to visualize changes in water temperature, which can indicate water pollution via industrial sources or sewage The fishing bob is designed simply enough that anyone can build it and its components can be easily obtained from Home Depot and Radio Shack. Project Goals:To produce a cheaply made, easy to use piece of technology to track temperature changes in water. And to produce a product that can be easily altered to suit many innovative needs. Research URL’s:First iteration of the Thermal Fishing Bob developed in Sara Wylie’s class at RISD: http://publiclab.org/wiki/thermal-fishing-bob Second iteration of the Thermal Fishing Bob developed at 2014 Barnraising: http://www.publiclab.org/wiki/thermal-fishing-bob-barnraising http://www.publiclab.org/wiki/thermal-fishing-bob-plots-boston-toolshed-raising First long exposure pictures with the fishing bob: http://publiclab.org/wiki/thermal-fishing-bob-plots-boston-toolshed-raising http://publiclab.org/notes/Sara/04-23-2014/successful-thermal-fishing-bob-maps First Field test of the Fishing Bob Research Notes on development workshops MIT Research notes on towing the tool Next steps on developing the tool Building Your Own:How To GuideThe fishing bob’s tech is sealed within a waterproofed translucent container, a Koolaid mix container will do, with only the thermistor poking out the bottom (sealed around the edges with hot glue). The fishing bob is then wrapped in foam so that it floats, attached to a reel so it can be pulled, and dropped in the water. The thermistor reads changes in temperature and the LED within the fishing bob causes the fishing bob to change color in accordance with the temperature. The readings are recorded on the Arduino inside, which can then be read once it is plugged into a computer. While the fishing bob is being dragged across the water long exposure photos are being taken to create a “light painting” of the temperature gradient. One neat way to make these long exposure images is to use glowdoodle from MIT. Materials:
Thermal Fishing Bob Arduino Sketch Can Be Found Here:http://www.publiclab.org/wiki/thermal-fishing-bob-barnraising Next Steps:I am currently working with Sara Wylie on a project to make the thermal fishing bob towable behind a kayak. In previous testing the fishing bobs tended to submerge and become water damaged so we are working on a prototype that would be set into a floatation device. One concept is to wrap two fishing bobs in foam and set them into the legholes of a child’s floatie, duct taping them into place. The first test was successful, the fishing bobs stayed in place above the water and there was no noticeable water damage. A second idea is to attach three fishing bobs to a foam sled/boogie board with thermistors of differing lengths to take a 3D image of the thermal gradient. This idea has yet to be tested. A third idea is to utilize ideas from the coqui to transform the thermal fishing bob into a conductivity fishing bob. This idea is still in the brainstorming stage, but we will be building a prototype soon. Images:
Thermal plume along the Charles River
Fishing bob made at MIT workshop from a soda cup
Thermal fishing bob circuit
Fishing bobs ready to go
Fishing bob being lowered into the river
First prototype of towable fishing bob |
Revert | |
| 62 | kgrevera |
May 13, 2015 01:48
| over 9 years ago
ApplicationsThermal imaging can be used to document heat/AC leaks from insulation gaps on a building's facade, reveal warmer ground water inflows (either fresh or chemical-laden) or "thermal pollution" from industrial processes entering ocean-temperature waterbodies, as well as identify areas on the human body experiencing infection or stress (includes epidemiological applications). Community applications so far include both a "heat-busters" program in East Harlem and a "forensic" water quality monitoring program in the Gowanus Canal. ApproachesThere are three prototypes in development:
Problem"FLIR" cameras can produce images such as the one below, and are typically used to identify heat leaks, but even low-resolution FLIR cameras can cost thousands of dollars. Our goal is to make this kind of investigation (and the potential savings) cheap, easy, fun, and informative for those of us without $10k in our pockets.
Thermal FlashlightThe first approach results in a kind of "light painting" -- a color heatmap overlaid directly onto the scene. This is the simplest, cheapest, and to date, most effective way we have developed of measuring heat leaks or cool leaks indoors and outdoors. Simply put, the "flashlight" puts out red light if it's pointed at something hot (default 75 deg F or more) and blue light if it's pointed at something cold *(default 60 deg F or less):
Using a Thermal FlashlightTo capture the light painting over time, we have been using timelapse photography or the prototype Public Lab Thermographer website (or its inspiration, GlowDoodle), as seen in the top image on this page.
Building your ownParts list For a Thermal Flashlight with 3.6 V Melexis Sensor and Common Anode LED.
Software Gist: https://gist.github.com/sdosemagen/1739961/ _Note: The goal of this file is to be a place to download everything without pursuing other links. If there are changes or updates please feel free to add and re-upload. If the file is missing anything, please comment below. You might notice that this is for the 5v Melexis, but it will work for either without issues. Alternative variations of the Flashlight can be made with a 5.5V Melexis Sensor and Common Cathode LED. For the 5.5 V sensor follow this diagram: http://publiclaboratory.org/notes/sara/2-7-2012/circuit-diagram-5v-melexis-sensor For the common cathode circuit board follow this diagram: http://publiclaboratory.org/notes/warren/2-11-2012/common-cathode-variant-thermal-flashlight-code Links to purchasing equipment: Consumable Parts:
If you are starting an electronics kit from scratch:
Cost: ~$40-$60 These research notes will be integrated into this page to provide instructions on building and using your own thermal flashlight:
Several meetups have been organized to build and test thermal flashlights, at RISD (Providence, RI) and in Brooklyn, NY. We are organizing one now in Somerville, MA:
Thermal flashlight heatmapsThermal Fishing BobThe thermal fishing bob project develops a DIY technology to visualize changes in water temperature, which can indicate water pollution via industrial sources or sewage The fishing bob is designed simply enough that anyone can build it and its components can be easily obtained from Home Depot and Radio Shack. Project Goals:To produce a cheaply made, easy to use piece of technology to track temperature changes in water. And to produce a product that can be easily altered to suit many innovative needs. Research URL’s:First iteration of the Thermal Fishing Bob developed in Sara Wylie’s class at RISD: http://publiclab.org/wiki/thermal-fishing-bob Second iteration of the Thermal Fishing Bob developed at 2014 Barnraising: http://www.publiclab.org/wiki/thermal-fishing-bob-barnraising http://www.publiclab.org/wiki/thermal-fishing-bob-plots-boston-toolshed-raising First long exposure pictures with the fishing bob: http://publiclab.org/wiki/thermal-fishing-bob-plots-boston-toolshed-raising http://publiclab.org/notes/Sara/04-23-2014/successful-thermal-fishing-bob-maps First Field test of the Fishing Bob Research Notes on development workshops MIT Research notes on towing the tool Next steps on developing the tool Building Your Own:How To GuideThe fishing bob’s tech is sealed within a waterproofed translucent container, a Koolaid mix container will do, with only the thermistor poking out the bottom (sealed around the edges with hot glue). The fishing bob is then wrapped in foam so that it floats, attached to a reel so it can be pulled, and dropped in the water. The thermistor reads changes in temperature and the LED within the fishing bob causes the fishing bob to change color in accordance with the temperature. The readings are recorded on the Arduino inside, which can then be read once it is plugged into a computer. While the fishing bob is being dragged across the water long exposure photos are being taken to create a “light painting” of the temperature gradient. One neat way to make these long exposure images is to use glowdoodle from MIT. Materials:
Thermal Fishing Bob Arduino Sketch Can Be Found Here:http://www.publiclab.org/wiki/thermal-fishing-bob-barnraising Next Steps:I am currently working with Sara Wylie on a project to make the thermal fishing bob towable behind a kayak. In previous testing the fishing bobs tended to submerge and become water damaged so we are working on a prototype that would be set into a floatation device. One concept is to wrap two fishing bobs in foam and set them into the legholes of a child’s floatie, duct taping them into place. The first test was successful, the fishing bobs stayed in place above the water and there was no noticeable water damage. A second idea is to attach three fishing bobs to a foam sled/boogie board with thermistors of differing lengths to take a 3D image of the thermal gradient. This idea has yet to be tested. A third idea is to utilize ideas from the coqui to transform the thermal fishing bob into a conductivity fishing bob. This idea is still in the brainstorming stage, but we will be building a prototype soon. Images:
Thermal plume along the Charles River
Fishing bob made at MIT workshop from a soda cup
Thermal fishing bob circuit
Fishing bobs ready to go
Fishing bob being lowered into the river
First prototype of towable fishing bob |
Revert | |
| 61 | kgrevera |
May 13, 2015 01:47
| over 9 years ago
ApplicationsThermal imaging can be used to document heat/AC leaks from insulation gaps on a building's facade, reveal warmer ground water inflows (either fresh or chemical-laden) or "thermal pollution" from industrial processes entering ocean-temperature waterbodies, as well as identify areas on the human body experiencing infection or stress (includes epidemiological applications). Community applications so far include both a "heat-busters" program in East Harlem and a "forensic" water quality monitoring program in the Gowanus Canal. ApproachesThere are three prototypes in development:
Problem"FLIR" cameras can produce images such as the one below, and are typically used to identify heat leaks, but even low-resolution FLIR cameras can cost thousands of dollars. Our goal is to make this kind of investigation (and the potential savings) cheap, easy, fun, and informative for those of us without $10k in our pockets.
Thermal FlashlightThe first approach results in a kind of "light painting" -- a color heatmap overlaid directly onto the scene. This is the simplest, cheapest, and to date, most effective way we have developed of measuring heat leaks or cool leaks indoors and outdoors. Simply put, the "flashlight" puts out red light if it's pointed at something hot (default 75 deg F or more) and blue light if it's pointed at something cold *(default 60 deg F or less):
Using a Thermal FlashlightTo capture the light painting over time, we have been using timelapse photography or the prototype Public Lab Thermographer website (or its inspiration, GlowDoodle), as seen in the top image on this page.
Building your ownParts list For a Thermal Flashlight with 3.6 V Melexis Sensor and Common Anode LED.
Software Gist: https://gist.github.com/sdosemagen/1739961/ _Note: The goal of this file is to be a place to download everything without pursuing other links. If there are changes or updates please feel free to add and re-upload. If the file is missing anything, please comment below. You might notice that this is for the 5v Melexis, but it will work for either without issues. Alternative variations of the Flashlight can be made with a 5.5V Melexis Sensor and Common Cathode LED. For the 5.5 V sensor follow this diagram: http://publiclaboratory.org/notes/sara/2-7-2012/circuit-diagram-5v-melexis-sensor For the common cathode circuit board follow this diagram: http://publiclaboratory.org/notes/warren/2-11-2012/common-cathode-variant-thermal-flashlight-code Links to purchasing equipment: Consumable Parts:
If you are starting an electronics kit from scratch:
Cost: ~$40-$60 These research notes will be integrated into this page to provide instructions on building and using your own thermal flashlight:
Several meetups have been organized to build and test thermal flashlights, at RISD (Providence, RI) and in Brooklyn, NY. We are organizing one now in Somerville, MA:
Thermal flashlight heatmapsThermal Fishing BobThe thermal fishing bob project develops a DIY technology to visualize changes in water temperature, which can indicate water pollution via industrial sources or sewage The fishing bob is designed simply enough that anyone can build it and its components can be easily obtained from Home Depot and Radio Shack. Project Goals:To produce a cheaply made, easy to use piece of technology to track temperature changes in water. And to produce a product that can be easily altered to suit many innovative needs. Research URL’s:First iteration of the Thermal Fishing Bob developed in Sara Wylie’s class at RISD: http://publiclab.org/wiki/thermal-fishing-bob Second iteration of the Thermal Fishing Bob developed at 2014 Barnraising: http://www.publiclab.org/wiki/thermal-fishing-bob-barnraising http://www.publiclab.org/wiki/thermal-fishing-bob-plots-boston-toolshed-raising First long exposure pictures with the fishing bob: http://publiclab.org/wiki/thermal-fishing-bob-plots-boston-toolshed-raising http://publiclab.org/notes/Sara/04-23-2014/successful-thermal-fishing-bob-maps First Field test of the Fishing Bob Research Notes on development workshops MIT Research notes on towing the tool Next steps on developing the tool Building Your Own:How To GuideThe fishing bob’s tech is sealed within a waterproofed translucent container, a Koolaid mix container will do, with only the thermistor poking out the bottom (sealed around the edges with hot glue). The fishing bob is then wrapped in foam so that it floats, attached to a reel so it can be pulled, and dropped in the water. The thermistor reads changes in temperature and the LED within the fishing bob causes the fishing bob to change color in accordance with the temperature. The readings are recorded on the Arduino inside, which can then be read once it is plugged into a computer. While the fishing bob is being dragged across the water long exposure photos are being taken to create a “light painting” of the temperature gradient. One neat way to make these long exposure images is to use glowdoodle from MIT. Materials:
Thermal Fishing Bob Arduino Sketch Can Be Found Here:http://www.publiclab.org/wiki/thermal-fishing-bob-barnraising Next Steps:I am currently working with Sara Wylie on a project to make the thermal fishing bob towable behind a kayak. In previous testing the fishing bobs tended to submerge and become water damaged so we are working on a prototype that would be set into a floatation device. One concept is to wrap two fishing bobs in foam and set them into the legholes of a child’s floatie, duct taping them into place. The first test was successful, the fishing bobs stayed in place above the water and there was no noticeable water damage. A second idea is to attach three fishing bobs to a foam sled/boogie board with thermistors of differing lengths to take a 3D image of the thermal gradient. This idea has yet to be tested. A third idea is to utilize ideas from the coqui to transform the thermal fishing bob into a conductivity fishing bob. This idea is still in the brainstorming stage, but we will be building a prototype soon. Images:
Thermal plume along the Charles River
Fishing bob made at MIT workshop from a soda cup
Thermal fishing bob circuit
Fishing bobs ready to go
Fishing bob being lowered into the river
First prototype of towable fishing bob |
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| 60 | kgrevera |
May 13, 2015 01:41
| over 9 years ago
ApplicationsThermal imaging can be used to document heat/AC leaks from insulation gaps on a building's facade, reveal warmer ground water inflows (either fresh or chemical-laden) or "thermal pollution" from industrial processes entering ocean-temperature waterbodies, as well as identify areas on the human body experiencing infection or stress (includes epidemiological applications). Community applications so far include both a "heat-busters" program in East Harlem and a "forensic" water quality monitoring program in the Gowanus Canal. ApproachesThere are three prototypes in development:
Problem"FLIR" cameras can produce images such as the one below, and are typically used to identify heat leaks, but even low-resolution FLIR cameras can cost thousands of dollars. Our goal is to make this kind of investigation (and the potential savings) cheap, easy, fun, and informative for those of us without $10k in our pockets.
Thermal FlashlightThe first approach results in a kind of "light painting" -- a color heatmap overlaid directly onto the scene. This is the simplest, cheapest, and to date, most effective way we have developed of measuring heat leaks or cool leaks indoors and outdoors. Simply put, the "flashlight" puts out red light if it's pointed at something hot (default 75 deg F or more) and blue light if it's pointed at something cold *(default 60 deg F or less):
Using a Thermal FlashlightTo capture the light painting over time, we have been using timelapse photography or the prototype Public Lab Thermographer website (or its inspiration, GlowDoodle), as seen in the top image on this page.
Building your ownParts list For a Thermal Flashlight with 3.6 V Melexis Sensor and Common Anode LED.
Software Gist: https://gist.github.com/sdosemagen/1739961/ _Note: The goal of this file is to be a place to download everything without pursuing other links. If there are changes or updates please feel free to add and re-upload. If the file is missing anything, please comment below. You might notice that this is for the 5v Melexis, but it will work for either without issues. Alternative variations of the Flashlight can be made with a 5.5V Melexis Sensor and Common Cathode LED. For the 5.5 V sensor follow this diagram: http://publiclaboratory.org/notes/sara/2-7-2012/circuit-diagram-5v-melexis-sensor For the common cathode circuit board follow this diagram: http://publiclaboratory.org/notes/warren/2-11-2012/common-cathode-variant-thermal-flashlight-code Links to purchasing equipment: Consumable Parts:
If you are starting an electronics kit from scratch:
Cost: ~$40-$60 These research notes will be integrated into this page to provide instructions on building and using your own thermal flashlight:
Several meetups have been organized to build and test thermal flashlights, at RISD (Providence, RI) and in Brooklyn, NY. We are organizing one now in Somerville, MA:
Thermal flashlight heatmapsThermal Fishing BobThe thermal fishing bob project develops a DIY technology to visualize changes in water temperature, which can indicate water pollution via industrial sources or sewage The fishing bob is designed simply enough that anyone can build it and its components can be easily obtained from Home Depot and Radio Shack. Project Goals:To produce a cheaply made, easy to use piece of technology to track temperature changes in water. And to produce a product that can be easily altered to suit many innovative needs. Research URL’s:First iteration of the Thermal Fishing Bob developed in Sara Wylie’s class at RISD: http://publiclab.org/wiki/thermal-fishing-bob Second iteration of the Thermal Fishing Bob developed at 2014 Barnraising: http://www.publiclab.org/wiki/thermal-fishing-bob-barnraising http://www.publiclab.org/wiki/thermal-fishing-bob-plots-boston-toolshed-raising First long exposure pictures with the fishing bob: http://publiclab.org/wiki/thermal-fishing-bob-plots-boston-toolshed-raising http://publiclab.org/notes/Sara/04-23-2014/successful-thermal-fishing-bob-maps First Field test of the Fishing Bob Research Notes on development workshops MIT Research notes on towing the tool Next steps on developing the tool Building Your Own:How To GuideThe fishing bob’s tech is sealed within a waterproofed translucent container, a Koolaid mix container will do, with only the thermistor poking out the bottom (sealed around the edges with hot glue). The fishing bob is then wrapped in foam so that it floats, attached to a reel so it can be pulled, and dropped in the water. The thermistor reads changes in temperature and the LED within the fishing bob causes the fishing bob to change color in accordance with the temperature. The readings are recorded on the Arduino inside, which can then be read once it is plugged into a computer. While the fishing bob is being dragged across the water long exposure photos are being taken to create a “light painting” of the temperature gradient. One neat way to make these long exposure images is to use glowdoodle from MIT. Materials:translucent plastic containers that can be easily sealed for waterproofing such as a takeout soup container or Koolaid mix container 9 wires thermistor breadboard Arduino Uno LED 9V batteries and holder 2 100 Ohm resistors 1 180 Ohm resistor 1 10k resistor hot glue gun packing tape wire strippers scissors small flathead screwdriver foam fishing/kite reel Arduino to USB cord computer Thermal Fishing Bob Arduino Sketch Can Be Found Here:http://www.publiclab.org/wiki/thermal-fishing-bob-barnraising Next Steps:I am currently working with Sara Wylie on a project to make the thermal fishing bob towable behind a kayak. In previous testing the fishing bobs tended to submerge and become water damaged so we are working on a prototype that would be set into a floatation device. One concept is to wrap two fishing bobs in foam and set them into the legholes of a child’s floatie, duct taping them into place. The first test was successful, the fishing bobs stayed in place above the water and there was no noticeable water damage. A second idea is to attach three fishing bobs to a foam sled/boogie board with thermistors of differing lengths to take a 3D image of the thermal gradient. This idea has yet to be tested. A third idea is to utilize ideas from the coqui to transform the thermal fishing bob into a conductivity fishing bob. This idea is still in the brainstorming stage, but we will be building a prototype soon. Images:
Thermal plume along the Charles River
Fishing bob made at MIT workshop from a soda cup
Thermal fishing bob circuit
Fishing bobs ready to go
Fishing bob being lowered into the river
First prototype of towable fishing bob |
Revert | |
| 59 | bsugar |
November 14, 2014 21:15
| about 10 years ago
ApplicationsThermal imaging can be used to document heat/AC leaks from insulation gaps on a building's facade, reveal warmer ground water inflows (either fresh or chemical-laden) or "thermal pollution" from industrial processes entering ocean-temperature waterbodies, as well as identify areas on the human body experiencing infection or stress (includes epidemiological applications). Community applications so far include both a "heat-busters" program in East Harlem and a "forensic" water quality monitoring program in the Gowanus Canal. ApproachesThere are three prototypes in development:
Problem"FLIR" cameras can produce images such as the one below, and are typically used to identify heat leaks, but even low-resolution FLIR cameras can cost thousands of dollars. Our goal is to make this kind of investigation (and the potential savings) cheap, easy, fun, and informative for those of us without $10k in our pockets.
Thermal FlashlightThe first approach results in a kind of "light painting" -- a color heatmap overlaid directly onto the scene. This is the simplest, cheapest, and to date, most effective way we have developed of measuring heat leaks or cool leaks indoors and outdoors. Simply put, the "flashlight" puts out red light if it's pointed at something hot (default 75 deg F or more) and blue light if it's pointed at something cold *(default 60 deg F or less):
Using a Thermal FlashlightTo capture the light painting over time, we have been using timelapse photography or the prototype Public Lab Thermographer website (or its inspiration, GlowDoodle), as seen in the top image on this page.
Building your ownParts list For a Thermal Flashlight with 3.6 V Melexis Sensor and Common Anode LED.
Software Gist: https://gist.github.com/sdosemagen/1739961/ _Note: The goal of this file is to be a place to download everything without pursuing other links. If there are changes or updates please feel free to add and re-upload. If the file is missing anything, please comment below. You might notice that this is for the 5v Melexis, but it will work for either without issues. Alternative variations of the Flashlight can be made with a 5.5V Melexis Sensor and Common Cathode LED. For the 5.5 V sensor follow this diagram: http://publiclaboratory.org/notes/sara/2-7-2012/circuit-diagram-5v-melexis-sensor For the common cathode circuit board follow this diagram: http://publiclaboratory.org/notes/warren/2-11-2012/common-cathode-variant-thermal-flashlight-code Links to purchasing equipment: Consumable Parts:
If you are starting an electronics kit from scratch:
Cost: ~$40-$60 These research notes will be integrated into this page to provide instructions on building and using your own thermal flashlight:
Several meetups have been organized to build and test thermal flashlights, at RISD (Providence, RI) and in Brooklyn, NY. We are organizing one now in Somerville, MA:
Thermal flashlight heatmaps |
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| 58 | bsugar |
November 14, 2014 21:13
| about 10 years ago
ApplicationsThermal imaging can be used to document heat/AC leaks from insulation gaps on a building's facade, reveal warmer ground water inflows (either fresh or chemical-laden) or "thermal pollution" from industrial processes entering ocean-temperature waterbodies, as well as identify areas on the human body experiencing infection or stress (includes epidemiological applications). Community applications so far include both a "heat-busters" program in East Harlem and a "forensic" water quality monitoring program in the Gowanus Canal. ApproachesThere are three prototypes in development:
Problem"FLIR" cameras can produce images such as the one below, and are typically used to identify heat leaks, but even low-resolution FLIR cameras can cost thousands of dollars. Our goal is to make this kind of investigation (and the potential savings) cheap, easy, fun, and informative for those of us without $10k in our pockets.
Thermal FlashlightThe first approach results in a kind of "light painting" -- a color heatmap overlaid directly onto the scene. This is the simplest, cheapest, and to date, most effective way we have developed of measuring heat leaks or cool leaks indoors and outdoors. Simply put, the "flashlight" puts out red light if it's pointed at something hot (default 75 deg F or more) and blue light if it's pointed at something cold *(default 60 deg F or less):
Using a Thermal FlashlightTo capture the light painting over time, we have been using timelapse photography or the prototype Public Lab Thermographer website (or its inspiration, GlowDoodle), as seen in the top image on this page.
Building your ownParts list For a Thermal Flashlight with 3.6 V Melexis Sensor and Common Anode LED.
Software _Note: The goal of this file is to be a place to download everything without pursuing other links. If there are changes or updates please feel free to add and re-upload. If the file is missing anything, please comment below. You might notice that this is for the 5v Melexis, but it will work for either without issues. Alternative variations of the Flashlight can be made with a 5.5V Melexis Sensor and Common Cathode LED. For the 5.5 V sensor follow this diagram: http://publiclaboratory.org/notes/sara/2-7-2012/circuit-diagram-5v-melexis-sensor For the common cathode circuit board follow this diagram: http://publiclaboratory.org/notes/warren/2-11-2012/common-cathode-variant-thermal-flashlight-code Links to purchasing equipment: Consumable Parts:
If you are starting an electronics kit from scratch:
Cost: ~$40-$60 These research notes will be integrated into this page to provide instructions on building and using your own thermal flashlight:
Several meetups have been organized to build and test thermal flashlights, at RISD (Providence, RI) and in Brooklyn, NY. We are organizing one now in Somerville, MA:
Thermal flashlight heatmaps |
Revert | |
| 57 | bsugar |
November 14, 2014 21:12
| about 10 years ago
ApplicationsThermal imaging can be used to document heat/AC leaks from insulation gaps on a building's facade, reveal warmer ground water inflows (either fresh or chemical-laden) or "thermal pollution" from industrial processes entering ocean-temperature waterbodies, as well as identify areas on the human body experiencing infection or stress (includes epidemiological applications). Community applications so far include both a "heat-busters" program in East Harlem and a "forensic" water quality monitoring program in the Gowanus Canal. ApproachesThere are three prototypes in development:
Problem"FLIR" cameras can produce images such as the one below, and are typically used to identify heat leaks, but even low-resolution FLIR cameras can cost thousands of dollars. Our goal is to make this kind of investigation (and the potential savings) cheap, easy, fun, and informative for those of us without $10k in our pockets.
Thermal FlashlightThe first approach results in a kind of "light painting" -- a color heatmap overlaid directly onto the scene. This is the simplest, cheapest, and to date, most effective way we have developed of measuring heat leaks or cool leaks indoors and outdoors. Simply put, the "flashlight" puts out red light if it's pointed at something hot (default 75 deg F or more) and blue light if it's pointed at something cold *(default 60 deg F or less):
Using a Thermal FlashlightTo capture the light painting over time, we have been using timelapse photography or the prototype Public Lab Thermographer website (or its inspiration, GlowDoodle), as seen in the top image on this page.
Building your ownParts list For a Thermal Flashlight with 3.6 V Melexis Sensor and Common Anode LED.
Software Alternative variations of the Flashlight can be made with a 5.5V Melexis Sensor and Common Cathode LED. For the 5.5 V sensor follow this diagram: http://publiclaboratory.org/notes/sara/2-7-2012/circuit-diagram-5v-melexis-sensor For the common cathode circuit board follow this diagram: http://publiclaboratory.org/notes/warren/2-11-2012/common-cathode-variant-thermal-flashlight-code Links to purchasing equipment: Consumable Parts:
If you are starting an electronics kit from scratch:
Cost: ~$40-$60 These research notes will be integrated into this page to provide instructions on building and using your own thermal flashlight:
Several meetups have been organized to build and test thermal flashlights, at RISD (Providence, RI) and in Brooklyn, NY. We are organizing one now in Somerville, MA:
Thermal flashlight heatmaps |
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| 56 | kgradow1 |
November 14, 2014 21:01
| about 10 years ago
ApplicationsThermal imaging can be used to document heat/AC leaks from insulation gaps on a building's facade, reveal warmer ground water inflows (either fresh or chemical-laden) or "thermal pollution" from industrial processes entering ocean-temperature waterbodies, as well as identify areas on the human body experiencing infection or stress (includes epidemiological applications). Community applications so far include both a "heat-busters" program in East Harlem and a "forensic" water quality monitoring program in the Gowanus Canal. ApproachesThere are three prototypes in development:
Problem"FLIR" cameras can produce images such as the one below, and are typically used to identify heat leaks, but even low-resolution FLIR cameras can cost thousands of dollars. Our goal is to make this kind of investigation (and the potential savings) cheap, easy, fun, and informative for those of us without $10k in our pockets.
Thermal FlashlightThe first approach results in a kind of "light painting" -- a color heatmap overlaid directly onto the scene. This is the simplest, cheapest, and to date, most effective way we have developed of measuring heat leaks or cool leaks indoors and outdoors. Simply put, the "flashlight" puts out red light if it's pointed at something hot (default 75 deg F or more) and blue light if it's pointed at something cold *(default 60 deg F or less):
Using a Thermal FlashlightTo capture the light painting over time, we have been using timelapse photography or the prototype Public Lab Thermographer website (or its inspiration, GlowDoodle), as seen in the top image on this page.
Building your ownParts list For a Thermal Flashlight with 3.6 V Melexis Sensor and Common Anode LED.
Alternative variations of the Flashlight can be made with a 5.5V Melexis Sensor and Common Cathode LED. For the 5.5 V sensor follow this diagram: http://publiclaboratory.org/notes/sara/2-7-2012/circuit-diagram-5v-melexis-sensor For the common cathode circuit board follow this diagram: http://publiclaboratory.org/notes/warren/2-11-2012/common-cathode-variant-thermal-flashlight-code Links to purchasing equipment: Consumable Parts:
If you are starting an electronics kit from scratch:
Cost: ~$40-$60 Source codeThermalFlashlight.ino on Github These research notes will be integrated into this page to provide instructions on building and using your own thermal flashlight:
Sample walkthroughsSeveral meetups have been organized to build and test thermal flashlights, at RISD (Providence, RI) and in Brooklyn, NY. We are organizing one now in Somerville, MA:
Thermal flashlight heatmaps |
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| 55 | kgradow1 |
November 14, 2014 21:00
| about 10 years ago
ApplicationsThermal imaging can be used to document heat/AC leaks from insulation gaps on a building's facade, reveal warmer ground water inflows (either fresh or chemical-laden) or "thermal pollution" from industrial processes entering ocean-temperature waterbodies, as well as identify areas on the human body experiencing infection or stress (includes epidemiological applications). Community applications so far include both a "heat-busters" program in East Harlem and a "forensic" water quality monitoring program in the Gowanus Canal. ApproachesThere are three prototypes in development:
Problem"FLIR" cameras can produce images such as the one below, and are typically used to identify heat leaks, but even low-resolution FLIR cameras can cost thousands of dollars. Our goal is to make this kind of investigation (and the potential savings) cheap, easy, fun, and informative for those of us without $10k in our pockets.
Thermal FlashlightThe first approach results in a kind of "light painting" -- a color heatmap overlaid directly onto the scene. This is the simplest, cheapest, and to date, most effective way we have developed of measuring heat leaks or cool leaks indoors and outdoors. Simply put, the "flashlight" puts out red light if it's pointed at something hot (default 75 deg F or more) and blue light if it's pointed at something cold *(default 60 deg F or less):
Using a Thermal FlashlightTo capture the light painting over time, we have been using timelapse photography or the prototype Public Lab Thermographer website (or its inspiration, GlowDoodle), as seen in the top image on this page.
Building your ownParts list For a Thermal Flashlight with 3.6 V Melexis Sensor and Common Anode LED.
Alternative variations of the Flashlight can be made with a 5.5V Melexis Sensor and Common Cathode LED. For the 5.5 V sensor follow this diagram: http://publiclaboratory.org/notes/sara/2-7-2012/circuit-diagram-5v-melexis-sensor For the common cathode circuit board follow this diagram: http://publiclaboratory.org/notes/warren/2-11-2012/common-cathode-variant-thermal-flashlight-code Links to purchasing equipment: Consumable Parts:
If you are starting an electronics kit from scratch:
Cost: ~$40-$60 Source codeThermalFlashlight.ino on Github Step-by-step instructions Further resourcesRelated research notes These research notes will be integrated into this page to provide instructions on building and using your own thermal flashlight:
Sample walkthroughs Several meetups have been organized to build and test thermal flashlights, at RISD (Providence, RI) and in Brooklyn, NY. We are organizing one now in Somerville, MA:
Thermal flashlight heatmaps |
Revert | |
| 54 | kgradow1 |
November 14, 2014 20:53
| about 10 years ago
ApplicationsThermal imaging can be used to document heat/AC leaks from insulation gaps on a building's facade, reveal warmer ground water inflows (either fresh or chemical-laden) or "thermal pollution" from industrial processes entering ocean-temperature waterbodies, as well as identify areas on the human body experiencing infection or stress (includes epidemiological applications). Community applications so far include both a "heat-busters" program in East Harlem and a "forensic" water quality monitoring program in the Gowanus Canal. ApproachesThere are three prototypes in development:
Problem"FLIR" cameras can produce images such as the one below, and are typically used to identify heat leaks, but even low-resolution FLIR cameras can cost thousands of dollars. Our goal is to make this kind of investigation (and the potential savings) cheap, easy, fun, and informative for those of us without $10k in our pockets.
Thermal FlashlightThe first approach results in a kind of "light painting" -- a color heatmap overlaid directly onto the scene. This is the simplest, cheapest, and to date, most effective way we have developed of measuring heat leaks or cool leaks indoors and outdoors. Simply put, the "flashlight" puts out red light if it's pointed at something hot (default 75 deg F or more) and blue light if it's pointed at something cold *(default 60 deg F or less):
Using a Thermal FlashlightTo capture the light painting over time, we have been using timelapse photography or the prototype Public Lab Thermographer website (or its inspiration, GlowDoodle), as seen in the top image on this page.
Building your ownParts list For a Thermal Flashlight with 3.6 V Melexis Sensor and Common Anode LED.
Alternative variations of the Flashlight can be made with a 5.5V Melexis Sensor and Common Cathode LED. For the 5.5 V sensor follow this diagram: http://publiclaboratory.org/notes/sara/2-7-2012/circuit-diagram-5v-melexis-sensor For the common cathode circuit board follow this diagram: http://publiclaboratory.org/notes/warren/2-11-2012/common-cathode-variant-thermal-flashlight-code Links to purchasing equipment: Consumable Parts:
If you are starting an electronics kit from scratch:
Cost: ~$40-$60 Related research notes These research notes will be integrated into this page to provide instructions on building and using your own thermal flashlight:
Sample walkthroughs Several meetups have been organized to build and test thermal flashlights, at RISD (Providence, RI) and in Brooklyn, NY. We are organizing one now in Somerville, MA:
Thermal flashlight heatmaps |
Revert | |
| 53 | kgradow1 |
November 14, 2014 20:49
| about 10 years ago
ApplicationsThermal imaging can be used to document heat/AC leaks from insulation gaps on a building's facade, reveal warmer ground water inflows (either fresh or chemical-laden) or "thermal pollution" from industrial processes entering ocean-temperature waterbodies, as well as identify areas on the human body experiencing infection or stress (includes epidemiological applications). Community applications so far include both a "heat-busters" program in East Harlem and a "forensic" water quality monitoring program in the Gowanus Canal. ApproachesThere are three prototypes in development:
Problem"FLIR" cameras can produce images such as the one below, and are typically used to identify heat leaks, but even low-resolution FLIR cameras can cost thousands of dollars. Our goal is to make this kind of investigation (and the potential savings) cheap, easy, fun, and informative for those of us without $10k in our pockets.
Thermal FlashlightThe first approach results in a kind of "light painting" -- a color heatmap overlaid directly onto the scene. This is the simplest, cheapest, and to date, most effective way we have developed of measuring heat leaks or cool leaks indoors and outdoors. Simply put, the "flashlight" puts out red light if it's pointed at something hot (default 75 deg F or more) and blue light if it's pointed at something cold *(default 60 deg F or less):
Using a Thermal FlashlightTo capture the light painting over time, we have been using timelapse photography or the prototype Public Lab Thermographer website (or its inspiration, GlowDoodle), as seen in the top image on this page.
Building your ownParts list For a Thermal Flashlight with 3.6 V Melexis Sensor and Common Anode LED.
Alternative variations of the Flashlight can be made with a 5.5V Melexis Sensor and Common Cathode LED. For the 5.5 V sensor follow this diagram: http://publiclaboratory.org/notes/sara/2-7-2012/circuit-diagram-5v-melexis-sensor For the common cathode circuit board follow this diagram: http://publiclaboratory.org/notes/warren/2-11-2012/common-cathode-variant-thermal-flashlight-code Links to purchasing equipment: Consumable Parts:
If you are starting an electronics kit from scratch:
Cost: ~$40-$60 These research notes will be integrated into this page to provide instructions on building and using your own thermal flashlight:
Several meetups have been organized to build and test thermal flashlights, at RISD (Providence, RI) and in Brooklyn, NY. We are organizing one now in Somerville, MA:
Thermal flashlight heatmaps |
Revert | |
| 52 | warren |
December 20, 2013 17:09
| almost 11 years ago
ApplicationsThermal imaging can be used to document heat/AC leaks from insulation gaps on a building's facade, reveal warmer ground water inflows (either fresh or chemical-laden) or "thermal pollution" from industrial processes entering ocean-temperature waterbodies, as well as identify areas on the human body experiencing infection or stress (includes epidemiological applications). Community applications so far include both a "heat-busters" program in East Harlem and a "forensic" water quality monitoring program in the Gowanus Canal. ApproachesThere are three prototypes in development:
Problem"FLIR" cameras can produce images such as the one below, and are typically used to identify heat leaks, but even low-resolution FLIR cameras can cost thousands of dollars. Our goal is to make this kind of investigation (and the potential savings) cheap, easy, fun, and informative for those of us without $10k in our pockets.
Thermal FlashlightThe first approach results in a kind of "light painting" -- a color heatmap overlaid directly onto the scene. This is the simplest, cheapest, and to date, most effective way we have developed of measuring heat leaks or cool leaks indoors and outdoors. Simply put, the "flashlight" puts out red light if it's pointed at something hot (default 75 deg F or more) and blue light if it's pointed at something cold *(default 60 deg F or less):
Using a Thermal FlashlightTo capture the light painting over time, we have been using timelapse photography or the prototype Public Lab Thermographer website (or its inspiration, GlowDoodle), as seen in the top image on this page.
Building your ownParts list For a Thermal Flashlight with 3.6 V Melexis Sensor and Common Anode LED.
Alternative variations of the Flashlight can be made with a 5.5V Melexis Sensor and Common Cathode LED. For the 5.5 V sensor follow this diagram: http://publiclaboratory.org/notes/sara/2-7-2012/circuit-diagram-5v-melexis-sensor For the common cathode circuit board follow this diagram: http://publiclaboratory.org/notes/warren/2-11-2012/common-cathode-variant-thermal-flashlight-code Links to purchasing equipment: Consumable Parts:
If you are starting an electronics kit from scratch:
Cost: ~$40-$60 These research notes will be integrated into this page to provide instructions on building and using your own thermal flashlight:
Several meetups have been organized to build and test thermal flashlights, at RISD (Providence, RI) and in Brooklyn, NY. We are organizing one now in Somerville, MA:
Thermal flashlight heatmaps |
Revert | |
| 51 | warren |
December 20, 2013 17:03
| almost 11 years ago
ApplicationsThermal imaging can be used to document heat/AC leaks from insulation gaps on a building's facade, reveal warmer ground water inflows (either fresh or chemical-laden) or "thermal pollution" from industrial processes entering ocean-temperature waterbodies, as well as identify areas on the human body experiencing infection or stress (includes epidemiological applications). Community applications so far include both a "heat-busters" program in East Harlem and a "forensic" water quality monitoring program in the Gowanus Canal. ApproachesThere are three prototypes in development:
Problem"FLIR" cameras can produce images such as the one below, and are typically used to identify heat leaks, but even low-resolution FLIR cameras can cost thousands of dollars. Our goal is to make this kind of investigation (and the potential savings) cheap, easy, fun, and informative for those of us without $10k in our pockets.
Thermal FlashlightThe first approach results in a kind of "light painting" -- a color heatmap overlaid directly onto the scene. This is the simplest, cheapest, and to date, most effective way we have developed of measuring heat leaks or cool leaks indoors and outdoors. Simply put, the "flashlight" puts out red light if it's pointed at something hot (default 75 deg F or more) and blue light if it's pointed at something cold *(default 60 deg F or less):
Using a Thermal FlashlightTo capture the light painting over time, we have been using timelapse photography or the prototype Public Lab Thermographer website (or its inspiration, GlowDoodle), as seen in the top image on this page.
Building your ownParts list For a Thermal Flashlight with 3.6 V Melexis Sensor and Common Anode LED.
Alternative variations of the Flashlight can be made with a 5.5V Melexis Sensor and Common Cathode LED. For the 5.5 V sensor follow this diagram: http://publiclaboratory.org/notes/sara/2-7-2012/circuit-diagram-5v-melexis-sensor For the common cathode circuit board follow this diagram: http://publiclaboratory.org/notes/warren/2-11-2012/common-cathode-variant-thermal-flashlight-code Links to purchasing equipment: Consumable Parts:
If you are starting an electronics kit from scratch:
Cost: ~$40-$60 These research notes will be integrated into this page to provide instructions on building and using your own thermal flashlight:
Several meetups have been organized to build and test thermal flashlights, at RISD (Providence, RI) and in Brooklyn, NY. We are organizing one now in Somerville, MA:
Thermal flashlight heatmaps |
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| 50 | warren |
August 23, 2012 13:47
| about 12 years ago
ApplicationsThermal imaging can be used to document heat/AC leaks from insulation gaps on a building's facade, reveal warmer ground water inflows (either fresh or chemical-laden) or "thermal pollution" from industrial processes entering ocean-temperature waterbodies, as well as identify areas on the human body experiencing infection or stress (includes epidemiological applications). Community applications so far include both a "heat-busters" program in East Harlem and a "forensic" water quality monitoring program in the Gowanus Canal. ApproachesThere are three prototypes in development:
Problem"FLIR" cameras can produce images such as the one below, and are typically used to identify heat leaks, but even low-resolution FLIR cameras can cost thousands of dollars. Our goal is to make this kind of investigation (and the potential savings) cheap, easy, fun, and informative for those of us without $10k in our pockets.
Thermal FlashlightThe first approach results in a kind of "light painting" -- a color heatmap overlaid directly onto the scene. This is the simplest, cheapest, and to date, most effective way we have developed of measuring heat leaks or cool leaks indoors and outdoors. Simply put, the "flashlight" puts out red light if it's pointed at something hot (default 75 deg F or more) and blue light if it's pointed at something cold *(default 60 deg F or less):
Using a Thermal FlashlightTo capture the light painting over time, we have been using timelapse photography or the prototype Public Lab Thermographer website (or its inspiration, GlowDoodle), as seen in the top image on this page.
Building your ownParts list For a Thermal Flashlight with 3.6 V Melexis Sensor and Common Anode LED.
Alternative variations of the Flashlight can be made with a 5.5V Melexis Sensor and Common Cathode LED. For the 5.5 V sensor follow this diagram: http://publiclaboratory.org/notes/sara/2-7-2012/circuit-diagram-5v-melexis-sensor For the common cathode circuit board follow this diagram: http://publiclaboratory.org/notes/warren/2-11-2012/common-cathode-variant-thermal-flashlight-code Links to purchasing equipment: Consumable Parts:
If you are starting an electronics kit from scratch:
Cost: ~$40-$60 These research notes will be integrated into this page to provide instructions on building and using your own thermal flashlight:
Several meetups have been organized to build and test thermal flashlights, at RISD (Providence, RI) and in Brooklyn, NY. We are organizing one now in Somerville, MA:
Thermal flashlight heatmaps |
Revert | |
| 49 | warren |
May 05, 2012 03:48
| over 12 years ago
ApplicationsThermal imaging can be used to document heat/AC leaks from insulation gaps on a building's facade, reveal warmer ground water inflows (either fresh or chemical-laden) or "thermal pollution" from industrial processes entering ocean-temperature waterbodies, as well as identify areas on the human body experiencing infection or stress (includes epidemiological applications). Community applications so far include both a "heat-busters" program in East Harlem and a "forensic" water quality monitoring program in the Gowanus Canal. ApproachesThere are three prototypes in development:
Problem"FLIR" cameras can produce images such as the one below, and are typically used to identify heat leaks, but even low-resolution FLIR cameras can cost thousands of dollars. Our goal is to make this kind of investigation (and the potential savings) cheap, easy, fun, and informative for those of us without $10k in our pockets.
Thermal FlashlightThe first approach results in a kind of "light painting" -- a color heatmap overlaid directly onto the scene. This is the simplest, cheapest, and to date, most effective way we have developed of measuring heat leaks or cool leaks indoors and outdoors. Simply put, the "flashlight" puts out red light if it's pointed at something hot (default 75 deg F or more) and blue light if it's pointed at something cold *(default 60 deg F or less):
Using a Thermal FlashlightTo capture the light painting over time, we have been using timelapse photography or GlowDoodle, as seen in the top image on this page.
Building your ownParts list For a Thermal Flashlight with 3.6 V Melexis Sensor and Common Anode LED.
Alternative variations of the Flashlight can be made with a 5.5V Melexis Sensor and Common Cathode LED. For the 5.5 V sensor follow this diagram: http://publiclaboratory.org/notes/sara/2-7-2012/circuit-diagram-5v-melexis-sensor For the common cathode circuit board follow this diagram: http://publiclaboratory.org/notes/warren/2-11-2012/common-cathode-variant-thermal-flashlight-code Links to purchasing equipment: Consumable Parts:
If you are starting an electronics kit from scratch:
Cost: ~$40-$60 These research notes will be integrated into this page to provide instructions on building and using your own thermal flashlight:
Several meetups have been organized to build and test thermal flashlights, at RISD (Providence, RI) and in Brooklyn, NY. We are organizing one now in Somerville, MA:
Thermal flashlight heatmaps |
Revert | |
| 48 | sara |
March 16, 2012 22:52
| over 12 years ago
ApplicationsThermal imaging can be used to document heat/AC leaks from insulation gaps on a building's facade, reveal warmer ground water inflows (either fresh or chemical-laden) or "thermal pollution" from industrial processes entering ocean-temperature waterbodies, as well as identify areas on the human body experiencing infection or stress (includes epidemiological applications). Community applications so far include both a "heat-busters" program in East Harlem and a "forensic" water quality monitoring program in the Gowanus Canal. ApproachesThere are three prototypes in development:
Problem"FLIR" cameras can produce images such as the one below, and are typically used to identify heat leaks, but even low-resolution FLIR cameras can cost thousands of dollars. Our goal is to make this kind of investigation (and the potential savings) cheap, easy, fun, and informative for those of us without $10k in our pockets.
Thermal FlashlightThe first approach results in a kind of "light painting" -- a color heatmap overlaid directly onto the scene. This is the simplest, cheapest, and to date, most effective way we have developed of measuring heat leaks or cool leaks indoors and outdoors. Simply put, the "flashlight" puts out red light if it's pointed at something hot (default 75 deg F or more) and blue light if it's pointed at something cold *(default 60 deg F or less):
Using a Thermal FlashlightTo capture the light painting over time, we have been using timelapse photography or GlowDoodle, as seen in the top image on this page.
Building your ownParts list For a Thermal Flashlight with 3.6 V Melexis Sensor and Common Anode LED.
Alternative variations of the Flashlight can be made with a 5.5V Melexis Sensor and Common Cathode LED. For the 5.5 V sensor follow this diagram: http://publiclaboratory.org/notes/sara/2-7-2012/circuit-diagram-5v-melexis-sensor For the common cathode circuit board follow this diagram: http://publiclaboratory.org/notes/warren/2-11-2012/common-cathode-variant-thermal-flashlight-code Links to purchasing equipment: Consumable Parts:
If you are starting an electronics kit from scratch:
Cost: ~$40-$60 These research notes will be integrated into this page to provide instructions on building and using your own thermal flashlight:
Several meetups have been organized to build and test thermal flashlights, at RISD (Providence, RI) and in Brooklyn, NY. We are organizing one now in Somerville, MA:
Thermal flashlight heatmaps |
Revert |
