amplifier for Rogowski Coil

Discussion in 'The Projects Forum' started by abadi, Mar 23, 2010.

  1. abadi

    Thread Starter New Member

    Nov 8, 2009
    16
    0
    hi guys

    im almost done with my project , but im facing 1 problem with my amplifier that amplify the output of the coil,


    this is the experiment i have done .
    first , i set the function generator to max amplitude which gives 23V Ac at the oscilloscope and start with 30k f and its sin-wave .

    and this is my steps;-

    1- i use the function generator to produce a frequency that pass through the coil
    2- i measure the output of the coil by using an oscilloscope to see the wave form then see the V-peack value
    3- i start it with 30K f, and its give me 22mV AC from the coil.
    4- i increase it to 60K f , and its gave me 38mV AC from the coil.
    5- increase it to 90k f , and its gave me 52mV AC from the coil.
    and its going on
    when i increase the frequency the wave will increase and also the V-peak value ...

    my question are
    1- how much gain i have to use to amplify the signal ..??
    2- my gain should be dependent base on what ?

    thanx alot
     
  2. abadi

    Thread Starter New Member

    Nov 8, 2009
    16
    0
    helloooooooooooooooooooooooooooooooooooooo
    neeeeed hellllp :(
     
  3. Bychon

    Member

    Mar 12, 2010
    469
    41
    Your gain should be dependent on how much voltage you want to have after the amplifier has amplified.
     
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