Difference between revisions of "DIY turbidity meters"
From Hackteria Wiki
| Line 2: | Line 2: | ||
simple laser absorbtion, easy detection of turbidity | 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... | 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 | also we are working on a hacked line-scanner to look at the spectra after passing a prism or grating | ||
Revision as of 16:12, 25 April 2011
coming soon, first experiments running and are great...
simple laser absorbtion, easy detection of turbidity
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...
turbidity to pd tools:
also we are working on a hacked line-scanner to look at the spectra after passing a prism or grating
