DIY spectroscopy

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GaudiLabs "3DFiberSpectrometer"

Updated version of the Open Fiber Spectrometer, smaller footprint, improved holders for webcam and other optical components.

GaudiLabs "Open Fiber Spectrometer"

OpenFiberSpectromer Inside1-768x389.jpg

Experiences with new webcam and thick-film gratings

we ordered the widely available webcam from aliexpress HM1355, approx 3USD. The gratings are more difficult to find, and we are testing 300 & 600 lines/mm from ali.

First experiments showed we might wanna use higher line densities. also the angle / position for the cam and gratings needs to be adjusted. no cheap distributor found yet.

Ancient documentations

Some links to spectroscopy

from hostprods:

Here's some links to a few opensource meditations on this issue, from DIYbio list: Mini Spectrometermple-DIY-spectrophotometer/

Spectruino with line CCD:

Open Mini Spectrometer printable spectrometer with open source hardware linear detector

Inexpensive vis Spectrometer journal of chemical eduction File:Inexpensive spectrometer 2013.pdf

Public Lab - SpectralWorkbench

Public Laboratory DIY Spectrophotometer:

using it for kombucha:

Experiments with Foldable mini-Spectro and Android Phone

FoldableMiniSpectro on Android.jpg

Downloaded from PublicLab:

Redesigned for laser-cutting

File:FoldableMiniSpectro redesign v1.pdf

Experiments with Foldable mini-Spectro and a cuvette holder, laptop

Experiments with Foldable mini-Spectro and a cuvette holder, android HTC

FoldableMiniSpectro v2 on Android.jpg

File:FoldableMiniSpectro redesign v2.pdf

images are a bit too noise. maybe try wider slit...

Measurements below where taken against "sun-light" on a cloudy day... veeery cloudy :-(

Testing it with Absinthe aka Die Grüne Fee

Grüne Fee Spektroskopie.jpg

Next Steps... testing it to detect Silver Nanoparticles

Updated version

File:FoldableMiniSpectro redesign v3 2.pdf

Raman Spectroscopy