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 | ||
|---|---|---|---|---|---|
| eigentuininhuis | "@warren I tried it again but no succes :( It happend last night got some spectrums and suddenly it stopped saving them. Tried chrome and internet ..." | Read more » | almost 9 years ago | |||
| warren | "I believe this is resolved now; thanks for reporting! " | Read more » | almost 9 years ago | |||
| warren | "Looking into this now; please file bug reports at https://github.com/publiclab/spectral-workbench/issues, thanks! " | Read more » | almost 9 years ago | |||
| eigentuininhuis | "He it worked @liz some how! to just make a new calibration of 9 points with a different fluoresent light bulb not the ones i use for aquariums " | Read more » | almost 9 years ago | |||
| warren | "Hi, can you link us to the spectrum you're trying to calibrate? " | Read more » | almost 9 years ago | |||
| liz | "Hi @eigentuininhuis this spectrum looks really good, but the graph looks odd. Have you saved the spectrum and tried calibrating it on the next scre..." | Read more » | almost 9 years ago | |||
| warren | "This is an issue with the instructions highlighted by @stevie -- your spectra are well calibrated and the 435/546 #s refer to the nanometer positio..." | Read more » | almost 9 years ago | |||
| asasergio | ""vertical" checkbox (of SpectralWorkbench upload page) checked in the three tests. Now, rotating and cutting the test 1 image, I did two uploads w..." | Read more » | almost 9 years ago | |||
| warren | "I believe this is fixed in the new 2.0 interface: " | Read more » | almost 9 years ago | |||
| warren | "Hi, thanks for reporting. For the first and second, did you have the "vertical" checkbox checked? Perhaps for one but not the other? For the calib..." | Read more » | almost 9 years ago | |||
| asasergio | "Test 1 Upload image: as it was captured by smartphone ...result in SpectralWorkbench, unfit for calibration: Test 2 Upload image: after resiz..." | Read more » | almost 9 years ago | |||
| asasergio | "Maybe, the projects to measure the absorption spectrum of methylene blue are based on OTK prototypes, not in v3 Spectrometer kit. See more in: http..." | Read more » | almost 9 years ago | |||
| asasergio | "I understand what you want, a button to delete more than one spectrum, at one time, and I also need it. For this, the application would have to all..." | Read more » | almost 9 years ago | |||
| warren | "I'm so sorry - was away for holidays and busy with various projects... I recommend trying to rename the file without parentheses and trying to upl..." | Read more » | almost 9 years ago | |||
| warren | "Hi, lucca - what are your spectra you're trying to subtract, can you link to them? In the new Spectral Workbench, you can subtract using the Opera..." | Read more » | almost 9 years ago | |||
| cfastie | "I guess you are referring to the video on this page: https://publiclab.org/wiki/spectral-workbench-usage, which is this video: https://www.youtube...." | Read more » | almost 9 years ago | |||
| lucca_fabani | "Hi Chris, I am using the v3 Spectrometer kit, I have tried different light sources, the one i am currently using is a white LED, i have tried with ..." | Read more » | almost 9 years ago | |||
| cfastie | "What video are you referring to? What spectrometer are you using? What light source are you using? Chris " | Read more » | almost 9 years ago | |||
| daniel94 | "The first screenshot is one of the input that I entered and the second screenshot is that of the page to which I was led. " | Read more » | about 9 years ago | |||
| danbeavers | "Perhaps there is a need for scaling options of the y axis. Perhaps it would be useful to turn off 2 or 1 color channels and scale the result appro..." | Read more » | about 9 years ago | |||
| warren | "Could you share a screenshot of the form, so we can see all the input you entered? Thanks again. " | Read more » | about 9 years ago | |||
| daniel94 | "hello,the page that I tried to calibrate from is https://spectralworkbench.org/upload and the link I pressed is "upload with selected calibration". " | Read more » | about 9 years ago | |||
| warren | "Hi, what page are you calibrating from, and what button or link do you press to begin calibrating? Thanks for reporting! " | Read more » | about 9 years ago | |||
| ethanbass | "That button appears to me when I'm on the page for a spectrum, but not when I visit the page for a set. " | Read more » | about 9 years ago |