Difference between revisions of "DIY turbidity meters"

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coming soon, first experiments running and are great...
 
coming soon, first experiments running and are great...
  
 +
simple laser absorbtion, easy detection of turbidity
 
[[File:turbi_siech.jpg|320px]]
 
[[File:turbi_siech.jpg|320px]]
  
 +
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]]
 
[[File:NS_spectrophotometer_filtering.jpg|320px]]
  
 
turbidity to pd tools:
 
turbidity to pd tools:
 
[[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

Revision as of 15:05, 25 April 2011

coming soon, first experiments running and are great...

simple laser absorbtion, easy detection of turbidity Turbi siech.jpg

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... NS spectrophotometer filtering.jpg

turbidity to pd tools: Turbiditiy logging pd.jpg

also we are working on a hacked line-scanner to look at the spectra after passing a prism or grating