02 Aug '16, 5am

Hackaday Prize Entry: A Visible Spectrophotometer

Spectroscopy is one of the most useful tools in all of science, and for The Hackaday Prize’s Citizen Science effort [esben] is putting spectroscopy in the hands of every high school student. He’s built a super cheap, but very good spectrophotometer . The idea of a spectrophotometer is simple enough – shine light through a sample, send that light through a diffraction grating, focus it, and shine the light onto a CCD. Implementing this simple system is all about the details, but with the right low-cost lenses and a 3D printed enclosure, [esben] has this more or less put together. Of course, lenses and diffraction gratings are relatively simple. You need real data, and for this we can turn to another one of [esben]’s projects in the Hackaday Prize . It’s a breakout board for a linear CCD module, able to capture the spectrum coming off a sample with incredible precision. This...

Full article: http://hackaday.com/2016/08/01/hackaday-prize-entry-a-vis...

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