Difference between revisions of "DIY turbidity meters"
From Hackteria Wiki
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[[File:turbiditiy_logging_pd.jpg|320px]] | [[File:turbiditiy_logging_pd.jpg|320px]] | ||
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| + | see this for dishwashers... | ||
| + | http://www.appliancezone.com/ShowProduct.aspx?ID=48034 | ||
== UV-vis absorbtion spectrophotometer == | == UV-vis absorbtion spectrophotometer == | ||
Revision as of 20:49, 28 April 2013
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:
see this for dishwashers... http://www.appliancezone.com/ShowProduct.aspx?ID=48034
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.
