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Low-Current Detection

  1. Oct 3, 2007 #1
    Hello everyone. I am looking for a practical method to detect very small currents in nano or pico amperes. Are there galvanotmeters or devices capable of doing that? Thanks a lot.
  2. jcsd
  3. Oct 3, 2007 #2


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    Staff: Mentor

  4. Oct 3, 2007 #3
    Thanks a lot. That is very helpful. Are there other devices that can measure small magnetic fluxes and very small variations in them? I would like to measure small changes in a magnetic flux without having to measure the induced AC current resulting from this
    variation, since such picoammeters measure DC current. Thanks again.
  5. Jan 13, 2009 #4

    What can you do if you need to make a floating measurement of such a small current? The commercial picoammeters only have a range of about 500V maybe 700V.
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