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 | ||
|---|---|---|---|---|---|
| warren | "Indeed I think it's possible to answer this empirically - for example in @xose's, horizontal is the correct orientation. It's hard to describe ver..." | Read more » | almost 8 years ago | |||
| xose | " Hi @wlkwong! I've built my personal mini spectrometer using a 1" PVC tube. The collimation slit is attached to a 1" cap so I can pull it out and r..." | Read more » | almost 8 years ago | |||
| dhale2 | "Wonderful suggestions! Thanks for all the help. David " | Read more » | about 8 years ago | |||
| warren | "Yes, it is possible to capture periodically -- there's a thread about it here: https://groups.google.com/forum/#!searchin/plots-spectrometry/timer..." | Read more » | about 8 years ago | |||
| xose | "Excellent @cfastie! Another option a lot more techie but, if not only for this temporal use, would be installing Spectralworkbench on a local serve..." | Read more » | about 8 years ago | |||
| cfastie | "I don't know whether a macro in Spectral Workbench could capture images at some interval from a continuous video stream from a webcam (spectrometer..." | Read more » | about 8 years ago | |||
| xose | "Same happend to me and when reloaded, both messages (the need of calibration and the "Tag you've applied couldn't be saved") dissapeared and looks ..." | Read more » | about 8 years ago | |||
| warren | "Hi, this looks like a bug -- I've opened a new bug report here: https://github.com/publiclab/spectral-workbench/issues/386 I saw an error while fo..." | Read more » | about 8 years ago | |||
| Paul_P | "Missed out the link https://spectralworkbench.org/spectrums/92420 " | Read more » | about 8 years ago | |||
| warren | "I believe this is a bug; the JavaScript console shows: application-0add8749179623a04221903b025c601c.js:57 parsing calibrate:92343#25653 applicatio..." | Read more » | about 8 years ago | |||
| warren | "Thanks for sharing the link. Because you're using an uploaded image, the top row of pixels is quite dark, and that's the one used as your cross-sec..." | Read more » | about 8 years ago | |||
| chuynh451 | "Here is my latest try: https://spectralworkbench.org/spectrums/89850 " | Read more » | about 8 years ago | |||
| warren | "Can you link to your spectra so I can see? " | Read more » | about 8 years ago | |||
| warren | "The intensity is not an absolute measure - just a proportion of the dynamic range of the camera sensor. There are a few approaches to correcting fo..." | Read more » | about 8 years ago | |||
| sarahcm | "Of course, please feel free to change it; I can't seem to figure out how. Also, one last question; in addition to the percentage of intensity, is ..." | Read more » | about 8 years ago | |||
| warren | "Also, would you mind renaming this question "calibration error" or something similarly descriptive? I could also do it for you, if you like (I'm an..." | Read more » | about 8 years ago | |||
| warren | "You know what, I believe this was because there's a "(" in the title. Yes -- I was able to upload and calibrate a version which I'd renamed withou..." | Read more » | about 8 years ago | |||
| warren | "Oh sorry, I didn't see that -- will check the calibration now. " | Read more » | about 8 years ago | |||
| warren | "I do see an error when I try -- checking out on the server now... thanks for your patience! " | Read more » | about 8 years ago | |||
| sarahcm | "Thank you so much for all your work on this site. A couple girls have been working on a Science Fair project and are stuck on this piece. " | Read more » | about 8 years ago | |||
| sarahcm | "ok, I posted the photo. The photo is uploaded, just won't calibrate. I greatly appreciate any suggestions! " | Read more » | about 8 years ago | |||
| warren | "Hi, Sara - can you post the photo you're trying up upload here? You can click here to edit your question and drag the image into the text area to ..." | Read more » | about 8 years ago | |||
| warren | "Hi, do you mean delete them from SpectralWorkbench.org? There is a deletion button on the lower left side of each spectrum page. I hope that helps! " | Read more » | about 8 years ago | |||
| leanr | "I just got a CCD 1/3" and an optic megapixel f8 mm 1:1,4 and a grabster AV300, I just need to connect it to the metascop, and find the software... " | Read more » | over 8 years ago |