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Hootenany - please help

  1. Apr 16, 2006 #1
    As berkeman has already said you can use an ammeter. Basically, you need to connect the positive lead from your ammeter to the cathode of the photodiode and the earth or negative lead to the anode of the photodiode. This will allow you to measure the rate of flow of electrons, which is proportional to the illuminiation of the photodiode (and dependant on the wavelength of light). If you plot current against distance from source, you should be able to determine a relationship between the two variables.

    Hoot, this was from another thread. I know this sounds stupid, but could you draw the diagram.
     
  2. jcsd
  3. Apr 16, 2006 #2

    Hootenanny

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    More complex circuits, using the Op-amps we discussed can be found on the internet.

    Regards,
    ~Hoot
     

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  4. Apr 16, 2006 #3
    why is the attachment pending???????????
     
  5. Apr 16, 2006 #4

    Kurdt

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    It has to be looked at by moderators to see if its content is suitable for the site. It will be available once they've done so.
     
  6. Apr 16, 2006 #5
    come on moderators. approve it already
     
  7. Apr 16, 2006 #6

    Hootenanny

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    Patients is a virtue einstein. Anyway I can't see how a circuit diagram is nesscary. It's obvious what the circuit will look like.
     
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