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photodetectors and photoresistor
On 2008-10-12 02:56:49 -0400, swapna said:
Photosensors or photodetectors are sensors of light or other electromagnetic energy. There are several varieties: ¥ Optical detectors, which are mostly quantum devices in which an individual photon produces a discrete effect. A photoresistor or Light Dependent Resistor or CdS Cell is a resistor whose resistance decreases with increasing incident light intensity. It can also be referred to as a photoconductor. http://electronicstopics.blogspot.co...hotoresistor.h tml And this cross post from (where else) Google Groups is relevant how? -- Michael |
#2
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photodetectors and photoresistor
On 10/12/2008 8:46 AM Michael spake thus:???? On 2008-10-12 02:56:49 -0400, swapna said:?? ?? Photosensors or photodetectors are sensors of light or other?? electromagnetic energy. There are several varieties:?? ¥?Optical detectors, which are mostly quantum devices in which an?? individual photon produces a discrete effect.?? ?? A photoresistor or Light Dependent Resistor or CdS Cell is a resistor?? whose resistance decreases with increasing incident light intensity.?? It can also be referred to as a photoconductor.?? ?? http://electronicstopics.blogspot.com/2008/10/photodetector-photoresistor.h?? tml?? ?? And this cross post from (where else) Google Groups is relevant how?????No crosspost seen here (r.p.darkroom); perhaps you meant to say ??"multiple post"? Not particularly useful (and apparently self-promoting) ??in any case.??????-- ?? Washing one's hands of the conflict between the powerful and the??powerless means to side
with the powerful, not to be neutral.????- Paulo Freire?? |
#3
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photodetectors and photoresistor
Michael wrote:
And this cross post from (where else) Google Groups is relevant how? Just set your filters to delete google groups. Unfortunately it does get rid of a few useful posters but much of the rubbish goes. Pete -- http://www.petezilla.co.uk |
#4
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photodetectors and photoresistor
"Peter Chant" wrote in message ... Michael wrote: And this cross post from (where else) Google Groups is relevant how? Just set your filters to delete google groups. Unfortunately it does get rid of a few useful posters but much of the rubbish goes. Pete -- http://www.petezilla.co.uk Google does seem to respond to abuse complaints but all of the recent spam posted to the rec.photo groups has come from them. Anyone can get a Google account, post a bunch of spam and disappear. Probably we shold be going after the websites they use for selling junk. -- -- Richard Knoppow Los Angeles, CA, USA |
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