Difference between revisions of "DIY turbidity meters"
From Hackteria Wiki
| Line 1: | Line 1: | ||
| − | + | == Spectroscope == | |
| − | + | coming soon, first experiments by [http://hostdev.wordpress.com/author/hostprods/page/4/ Andy] and [http://www.dusseiller.ch/labs/?p=630 dusjagr] looked great... | |
| − | + | == Turbidity sensor == | |
| − | + | simple light absorbtion at a specific wavelength of a cheap laser, easy detection of turbidity. | |
| − | [[File: | + | [[File:turbi_siech.jpg|320px]] |
turbidity to pd tools: | turbidity to pd tools: | ||
| Line 13: | Line 13: | ||
[[File:turbiditiy_logging_pd.jpg|320px]] | [[File:turbiditiy_logging_pd.jpg|320px]] | ||
| − | also we are working on a hacked line-scanner to look at the spectra after passing a prism or grating | + | == UV-vis absorbtion spectrophotometer == |
| + | |||
| + | UV-vis spectrometer, would be even nicer, added white LED instead of laser, changing colors with simple light filters. but they have almost no UV, so added a UV led. turns out the CdS photoresistors are really slow and not very sensitive at UV also... | ||
| + | |||
| + | [[File:NS_spectrophotometer_filtering.jpg|320px]] | ||
| + | |||
| + | also we are working on a hacked line-scanner to look at the spectra after passing a prism or grating. | ||
Revision as of 11:39, 28 April 2011
Spectroscope
coming soon, first experiments by Andy and dusjagr looked great...
Turbidity sensor
simple light absorbtion at a specific wavelength of a cheap laser, easy detection of turbidity.
turbidity to pd tools:
UV-vis absorbtion spectrophotometer
UV-vis spectrometer, would be even nicer, added white LED instead of laser, changing colors with simple light filters. but they have almost no UV, so added a UV led. turns out the CdS photoresistors are really slow and not very sensitive at UV also...
also we are working on a hacked line-scanner to look at the spectra after passing a prism or grating.
