Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

LDRs Preferably cadmium sulphide LDRs

  1. Mar 3, 2004 #1
    It would be really helpfull if you could give me a few links on LDRs

    Preferably cadmium sulphide LDRs.

    I'm looking for the internal structure, chemical properties of cdS, and relationships between light intensity and resistance and if possible, light wavelength and resistance.

    I've been looking for a while but cant find anything.

    thank you
     
  2. jcsd
  3. Mar 3, 2004 #2

    Integral

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    Whats an LDR?
     
  4. Mar 3, 2004 #3
    Sorry, I didn't clarify.

    A Cadmium Sulphide Light Dependant Resistor (LDR)

    I thought that it was an accepted abbreviation.
     
  5. Mar 3, 2004 #4

    Integral

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    I have never heard or seen that acronym, are these photo diodes? Perhaps your difficulty in finding information is because LDR in not a common term. (Just guessing) :wink:
     
  6. Mar 3, 2004 #5
    An "LDR" is a photoconductive cell for which the equation:

    [tex]lnR=(ln[lux])^{-1}[/tex]

    applies, where R = Resistance of cell
    lux = intensity of light falling on cell
     
  7. Mar 3, 2004 #6

    Integral

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    Try including photo diode in your search string instead of LDR. I had some interesting hits with that.
     
  8. Mar 3, 2004 #7
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: LDRs Preferably cadmium sulphide LDRs
Loading...