How can I build a simple charge amplifier?

Discussion in 'The Projects Forum' started by sonnykay1369, Apr 20, 2016.

  1. sonnykay1369

    Thread Starter New Member

    Apr 20, 2016
    1
    0
    Hello there,
    I am designing an electric field mill that captures electric charges via a sensor plate and displays the result on an oscilloscope. I want to build a simple charge amplifier that can amplify the output from the sensor into something bigger, but simply dont know how to start. Any ideas?
     
  2. Alec_t

    AAC Fanatic!

    Sep 17, 2013
    5,771
    1,103
    Not sure if this would work, but perhaps use a JFET or MOSFET as a source follower, with the sensor plate on the gate?
    e.g.
    ChargeSensor.PNG
     
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