Public Lab Wiki documentation



Spectral Workbench

4,639 views | Last edited by warren about 2 months ago | #534


What is Spectral Workbench?

SpectralWorkbench.org is a web based application to collect, archive, share, and analyze spectral data, for Public Lab DIY spectrometers and other spectrometers.

With it, you can:

  • connect your USB Desktop Spectrometry Kit
  • scan and save samples
  • wavelength calibrate your spectrometer
  • plot light intensity as a function of wavelength (average digital consumer cameras have a range of 400 to 700 nm)
  • create sets of multiple spectra to visually compare and analyze scans
  • download CSV data for offline analysis
  • view others' data and discuss
  • find similar data in a database of over 60k spectra

No download is required -- just a web connection. The Chrome browser works best, but most standard-compliant browsers are supported. It is possible to use from an Android smartphone, preferably with the Firefox browser which allows you to specify which camera to look through.


Contents


Intro video

Browsers

Spectral Workbench should work on Chrome (in Windows/Mac/Linux/Android, but not iOS), Firefox (Windows/Mac/Linux/Android), or Opera (Android). It may work on other browsers and we are working on expanding coverage; read more on this page:

https://github.com/publiclab/spectral-workbench.js/issues/87


Development

Do you code? The codebase of Spectral Workbench is available at https://github.com/publiclab/spectral-workbench. The server is written in Ruby on Rails, with a lot of client side code in JavaScript. You can read about the JavaScript API here.

We really need more developers, so if you are interested, please get involved! A great place to start is the "plots-dev" mailing list for software developers: http://publiclab.org/wiki/developers


FAQ

We're collecting and working our way through a range of questions about Spectral Workbench -- if you can contribute your own questions, or answer others', please do!

Title Author Updated Likes
Is copy calibration on Spectral Workbench working? @microfibers about 2 months ago
How do I get the webcam feed on Spectral Workbench? @KenSuke 2 months ago
How do I search for the spectra recorded by a specific user? @nnn16 3 months ago
Can detect the camara,but can't show image @JHYeh 5 months ago
Spectral Workbench 1.0 seems much more stable than 2.0 and works well for the basic analysis I am trying to do, can I get access to 1.0 without being pushed to 2.0? @B-winters 5 months ago
Instruction videos don't work! @aemilius89 6 months ago
changing default webcam @julietalemus 6 months ago
How can I connect my gopro to SpectralWorkbench software? Is there other open software that would? @CD3000 6 months ago
Only seeing part of color spectrum @msolomon 7 months ago
copying calibration issue @ceberndsen 9 months ago
Standalone Spectrometry software & uploading JPG or PNG spectra @lach_myers 10 months ago
My uploaded file will not process. @JadaBada 10 months ago
How can I get the absorption spectra once I have calibrated my spectrometer data? @amenzel8 11 months ago
Why do raw RGB values differ from calibrated RGB values? I thought calibration just set pixels to wavelength (nm)? @troyb 11 months ago
Bug : Impossible to calibrate this mercury vapour spectrum @SarahC 12 months ago
Bug? My Spectrum loads then vanishes. @SarahC 12 months ago
Amazon UK - Link for perfect CFL? All mine are wide spectrum phosphor! @SarahC 12 months ago
Has anyone experienced difficulty to log in this site? I having the trouble since yesterday. Not just log in, but to save spectrum too (sometimes can log in but take a long loading). sorry for my bad english. @silvi_ap51 about 1 year ago
The spectrum gets vertical no matter how I upload the picture. @wangdydu about 1 year ago
comparison betweeen spectra made by manufacturer and spectralbench? @miramon over 1 year ago
How do I use SpectralWorkbench.js to auto-calibrate? @shenzj1994 over 1 year ago
Can you get color temperature from spectra @miramon over 1 year ago
Can I get a file of numbers instead of a graph from the foldable spectrometer software? @mountevans over 1 year ago
I can't enter a password when I try to login to Spectral Workbench. So I can't log in at all. @storacremu over 1 year ago
CSV files from spectra @Dr_Z over 1 year ago
I want to know a method to quantify milk proteins using the foldable mini spectrometer, Is this possible? @julsmill over 1 year ago
I want to know a method to quantify milk proteins (cow milk, almond milk, coconut milk, oat milk) using the foldable mini spectrometer, Is this possible? @julsmill over 1 year ago
How to use the API to export a constant stream of data? @Reallygeek over 1 year ago
How do we confirm the current version of the software? @quencher over 1 year ago
How should i go about converting svgs to jpgs or pngs @Flameytail over 1 year ago
Does anyone know what image processing spectral workbench does to find intensity at wavelength/ where to find the coding for that? @Reallygeek over 1 year ago
Calibaration or switching scale? @jayjay70 over 1 year ago
Delete my profile? @MEC08 almost 2 years ago
Starlight Recorder KIC8462852 @LightWaveResearch8000 almost 2 years ago
How To Make Time Lapse Spectrometer @LightWaveResearch8000 almost 2 years ago
"Use or calibrate calibration" dont show my reference CFL already calibrated @JSAENZ almost 2 years ago
Image is blue - First time @LightWaveResearch8000 almost 2 years ago
Copying Calibration @Ridwane about 2 years ago
Suppression of background light @saeed957 about 2 years ago
Cannot find colour spectrum @SpencerH about 2 years ago
Fraunhofer Lines at higher resolutions? @stef over 2 years ago
What are the units on the X axis for the spectrum capture for the Desktop Spectrometry Kit 3.0 @Schoster over 2 years ago
Save and Download buttons -where does the file save or download to? @testtube over 2 years ago
How to get spectral data in excel or other formats @suha over 2 years ago
orientation of slit vs that of diffraction grating @wlkwong over 2 years ago
Spectral Workbench recording time? @dhale2 over 2 years ago
Calibration of spectra fails @Paul_P over 2 years ago
Why copy calibration does not apply? @aelobo over 2 years ago
Intensity for spectra too low? @chuynh451 over 2 years ago
Error on calibrating uploaded spectrum @sarahcm over 2 years ago
how to delete my spectra on Spectral Workbench @redleon over 2 years ago
Calibration Issues with larger images @Anmar almost 3 years ago
Can i upload csv files on spectralworkbench for calibration and other purposes? @shubham almost 3 years ago
Question: Using a webcam with a image resolution of 1920x1020 @seko almost 3 years ago
How to rename a set on Spectral Workbench? @AndrewJamesLaplante almost 3 years ago
Question: How do I get the calibration user interface? @PeterDH about 3 years ago
Question: Why average? And what happens to the second Green? @viechdokter about 3 years ago
Difference CFL and Tube light? @Joris about 3 years ago
Question: desktop spectrometer 3.0 light sensitivity @Joris about 3 years ago
Question: Why won't the spectrum plot show once the image has been uploaded? @litar about 3 years ago
Question: Focus on mobile phone @clownfish about 3 years ago
Question: ccd camera on metascop @leanr about 3 years ago
Getting the spectrometer to work with a Raspberry Pi? @anjohn12 about 3 years ago
Automated captures? @viechdokter about 3 years ago
Question: total beginner problems @viechdokter about 3 years ago
Question: Spectrometer using photosensor @Abhay7417 over 3 years ago
Question: How do I save the calibration data? @mokeymark over 3 years ago
Question: Micro volume spectrometer using arduino and light detecting resistor. @Abhay7417 over 3 years ago
Question: can't save spectrum anymore @eigentuininhuis over 3 years ago
can't get the calibration right @eigentuininhuis over 3 years ago
What size (width and height) of the image to vertical upload (blue top) in SpectralWorkbench? @asasergio over 3 years ago
Question: How do I measure the absorption spectrum of a sample? @lucca_fabani over 3 years ago
Calibrating @daniel94 over 3 years ago
Question: What does the vertical scale mean? @someHerrings over 3 years ago
Question: Is there a way to delete a set of spectra from the spectral work bench? @ethanbass over 3 years ago
Question: Help @porbe over 3 years ago
Question: Why I can not upload images to calibrate @congminhqt almost 4 years ago
Question: downloading spectrum @mebaumga almost 4 years ago
Question: Stray light correction @SIMJEDI almost 4 years ago
Question: Colorimetry using the desktop spectrometer @mattiecaroline1991 almost 4 years ago
Question: deep UV @mebaumga almost 4 years ago
Question: @edilberto about 4 years ago
Question: "live" compare to camera feed @wecapa about 4 years ago
Show more

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Troubleshooting

If you feel you've encountered a bug with the software -- very possible! Please look through existing issues listed here, file a new one if you don't see something similar, and help to add any observations to existing issues shown here.

Thanks for helping improve this open source software!

Title Author Updated Likes
Nothing yet on the topic "spectral-workbench-issues" -- be the first to post something!

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