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 | ||
|---|---|---|---|---|---|
| Matej | "This is very helpful guys. Thanks " | Read more » | over 8 years ago | |||
| warren | "Ah, here it is -- not a great scan, but done on the same instrument in a short span of time: https://spectralworkbench.org/sets/3160 " | Read more » | over 8 years ago | |||
| cfastie | "I don't think I ever posted a tube fluorescent spectrum. But that's a good idea because those Wikipedia spectra of tube lamps don't all have the se..." | Read more » | over 8 years ago | |||
| warren | "@matej has been scanning and comparing both types in this note: https://publiclab.org/notes/Matej/02-24-2016/various-cfls-with-different-spectra#c1..." | Read more » | over 8 years ago | |||
| cfastie | "That might be normal behavior for the spectrometer. The slit allows only a narrow beam of light to hit the diffraction grating. If the beam does no..." | Read more » | over 8 years ago | |||
| cfastie | "All fluorescent lamps produce visible light when UV light from excited mercury gas excites phosphors coating the inside of the lamp. Most compact f..." | Read more » | over 8 years ago | |||
| warren | "I think I've found the issue; I was able to upload and see the data: https://spectralworkbench.org/spectrums/79205 Apologies for the bug, and tha..." | Read more » | over 8 years ago | |||
| warren | "Ah, i was able to reproduce this by re-uploading your image. I'll check the logs and see what happened: https://spectralworkbench.org/spectrums/79204 " | Read more » | over 8 years ago | |||
| warren | "I'll take a look in the morning but what happens when you choose a new cross section? Thanks for reporting the issue! " | Read more » | over 8 years ago | |||
| freedawnie | "Were you able to solve this? I am having the same issue. " | Read more » | over 8 years ago | |||
| litar | "The spectrum is created by combusting ammonia gas. Here is the link to my upload: https://spectralworkbench.org/spectrums/79004 " | Read more » | over 8 years ago | |||
| leanr | "yes, by and electric arc, so it vaporize the metals. " | Read more » | over 8 years ago | |||
| warren | "Does it burn or otherwise affect the surface it's pointed at? Cool. " | Read more » | over 8 years ago | |||
| leanr | "it gives you the spectrum of the examined metal or alloy " | Read more » | over 8 years ago | |||
| warren | "Whoa, what does a metascop do? " | Read more » | over 8 years ago | |||
| warren | "I haven't found a technique that worked for all phones but some apps let you fix infinity focus. " | Read more » | over 8 years ago | |||
| warren | "Hi! Can you please us to your spectrum so we can try it? Thanks! " | Read more » | over 8 years ago | |||
| leanr | "Thanks Chris, the images are from the metascop manual. The camera on the images is an analogic one from the '70ies, I would love to know if and ho..." | Read more » | over 8 years ago | |||
| cfastie | "That looks like a real find. I suspect some experimentation will be required to get photos of the spectra. The spectral image is probably not..." | Read more » | over 8 years ago | |||
| warren | "Hi! We just released a Node.js version of the core library here: https://github.com/publiclab/spectral-workbench.js I think it'd be possible to ta..." | Read more » | over 8 years ago | |||
| viechdokter | "Thank you Warren, I will try it out tomorrow. It's bed time here. And I promise not to "abuse" this macro. I had just set it to 6 seconds to get a..." | Read more » | over 8 years ago | |||
| warren | "Please don't leave it running though! It can eat up a lot of data real fast :-) " | Read more » | over 8 years ago | |||
| warren | "OK, i believe it works now. Same URL - default is set for 1 hour, in seconds (60 * 60 seconds). " | Read more » | over 8 years ago | |||
| warren | "Ah, made another adjustment. hang on i'm going to test it " | Read more » | over 8 years ago |