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Lock In Amplifier

  1. Nov 16, 2005 #1
    Is there a book or website that explains throughly how to use a Lock In Amplifier? I have never used one before and am using it in a Johnson Noise experiment with the "Art of Experimental Physics by Preston and Dietz" acting as the lab manual.
     
  2. jcsd
  3. Nov 16, 2005 #2

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  4. Feb 20, 2008 #3
    help

    Dear all,

    I understand the meaning of low pass filter and roll off in Lock-in amplifiers (I think at least). Pratically, the 24db/octave roll off should be better for a grater signal to noise ratio.

    So. why there is the possibility to use lower order filters? When I should prefere a 6db/octave filter???

    thank you all for help
     
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