Support Public Lab Today! For the last twelve years, Public Lab has hosted SpectralWorkbench.org so that people everywhere can calibrate and analyze their spectra. Unfortunately, current circumstances have led us to scale back and take certain services offline. SpectralWorkbench.org will go offline as of August 15, 2022. The SpectralWorkbench platform runs on a combination of volunteer and paid labor by the many people that build, maintain, and operate it via Public Lab. This is an effective combination thanks to the culture of Public Lab's Coding Community. Public Lab's web ecosystem, including PublicLab.org, MapKnitter.org, SpectralWorkbench.org, Infragram.org and associated projects, takes 20 hours a week from three Code Coordinators and our sysadmin. While cost effective, it is not free. Web hosting and server costs for SpectralWorkbench are approximately $1000 per month. We are doing our best to sustain programming and support for our community, and we need your help. Thank you for being part of our community. We can't wait to be back online with you. Support Public Lab by making a donation today. ###What is Spectral Workbench? [SpectralWorkbench.org](https://spectralworkbench.org) is a web based application to collect, archive, share, and analyze spectral data, for Public Lab [DIY spectrometers](/wiki/spectrometer) and other spectrometers. With it, you can: * connect your USB [Desktop Spectrometry Kit](/wiki/desktop-spectrometry-kit-3-0) * 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](https://spectralworkbench.org/stats) 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 * [Learn to use the software](/wiki/spectral-workbench-usage) * Learn about the [available tools](/wiki/spectral-workbench-tools) * Learn about [Calibration](/wiki/spectral-workbench-calibration) * Learn about the [Snapshots system](/wiki/spectral-workbench-snapshots) * Learn about the [Operations system](/wiki/spectral-workbench-operations) * [Spectrometry in general](/wiki/spectrometer) * [Applications & uses](/wiki/spectral-analysis) * [Construction](/wiki/spectrometer-construction) * [Desktop Spectrometry Kit](/wiki/desktop-spectrometry-kit-3-0) * [Foldable Mini-Spectrometer](/wiki/foldable-spec) * [Troubleshooting](/wiki/spectral-workbench-help) * [API Docs](/wiki/spectral-workbench-api) **** ###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](/wiki/spectral-workbench-api). 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! [questions:spectral-workbench] **** ## 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! [questions:spectral-workbench-issues] ...
| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| xose | "Hi @saeed957! Have you tried using a mobile phone? You can try taking the picture first and then upload it to the Spectralworkbench. I've modified..." | Read more » | about 7 years ago | |||
| zengirl2 | "@alanrday I don't know if this is helpful, but the specs say the cam is okay for Windows 7 and shouldn't require special drivers. However, Windows ..." | | about 7 years ago | |||
| suha | "Thanks Warren, I will certainly post my work as I proceed " | Read more » | about 7 years ago | |||
| rahal | "@rahal awards a barnstar to suha for their awesome contribution! " | Read more » | about 7 years ago | |||
| rahal | "@rahal awards a barnstar to suha for their awesome contribution! " | Read more » | about 7 years ago | |||
| SpencerH | "Hello, Me again. I found out what the problem was. Yesterday the spectrometer was working in my house. Today I set up the spectrometer in my office..." | Read more » | about 7 years ago | |||
| warren | "Ah, so glad it worked. Yes, it's a lot of data for the database to handle per spectrum! " | Read more » | over 7 years ago | |||
| Javi | "Tested a scaled version of the image: 2000 pixels wide: https://spectralworkbench.org/spectrums/100017 (fail again). 1000 pixels wide: https://s..." | Read more » | over 7 years ago | |||
| Javi | " Yes, always see the warning about the tags. :( The image is unprocessed, as taken from the camera. I'll try with lower image resolutions. ..." | Read more » | over 7 years ago | |||
| warren | "OK, so it's not that it's too large a file size, but it's over 4000 pixels wide, so I think it's longer than the available storage per record in th..." | Read more » | over 7 years ago | |||
| warren | "Although actually now that I look, it's only 500k, so I guess I was wrong about that. Trying to re-upload myself now. " | Read more » | over 7 years ago | |||
| warren | "Hi, Javi - i think one issue is that your image is really large... i wonder if you uploaded a cropped version of just the spectrum part of the imag..." | Read more » | over 7 years ago | |||
| warren | "Hi, did you also see "Tag you've applied couldn't be saved"? " | Read more » | over 7 years ago | |||
| Javi | "https://spectralworkbench.org/spectrums/99686 Thanks, Javi " | Read more » | over 7 years ago | |||
| warren | "Hi, can you link us to your spectrum so we can try it out? " | Read more » | over 7 years ago | |||
| Javi | "I've the same problem as described above by Paul. Running in Firefox browser and unable to calibrate a spectrograph. Regards, and thanks in advanc..." | Read more » | over 7 years ago | |||
| stef | "@warren, Here is the link to my latest cam https://spectralworkbench.org/spectrums/99143# also in Sun sky tags the slit is ca 0.04 mm cam is the MS..." | Read more » | over 7 years ago | |||
| warren | "Can you link to your data directly? I think it's possible higher resolution could help, but there may also be other resolution issues such as the ..." | Read more » | over 7 years ago | |||
| larsonreever | "You'll need to ensure all your data has the same cross-section if you want to compare it or use this calibration for other readings. " | Read more » | over 7 years ago | |||
| larsonreever | "it will save to your computer dear.... " | Read more » | over 7 years ago | |||
| warren | "Nanometers -- is the label not showing up? Thanks! If you haven't calibrated, it'll be pixels, not nanometers. " | Read more » | over 7 years ago | |||
| Schoster | "What are the units on the X axis for the spectrum capture for the Desktop Spectrometry Kit 3.0 " | Read more » | over 7 years ago | |||
| warren | "Hi, it should download to your Downloads folder if you're using Chrome. What is your OS and browser? " | Read more » | over 7 years ago | |||
| warren | "Hi, there is a CSV download link on each spectrum page. Glad to hear it and please post your work as you go! " | Read more » | over 7 years ago |