Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Faraday cup testing

  1. Jul 8, 2014 #1
    Hello everyone. I am trying to use a Faraday cup constructed by myself to measure the electrostatic charge presence in particles of a fluidized bed reactor. I am trying to test if it works properly but I am having some problems.

    I am tried to apply a voltage of 1.5 V till I obtain that voltage between the layers of the cup and then disconnecting it to see if it maintains that potential during some time, but when I disconnect the voltage source it looses the potential in like 2 seconds. Shouldn't it conserve the potential like a capacitor?

    I have tried to measure the charge of particles connecting the faraday cup to a picoammeter, but when I collect the particles inside I obtain oscillations over and under the zero. Maybe it is not correctly constructed or I am testing it wrong.

    Thank you so much for your attention. Regards!
     
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you help with the solution or looking for help too?
Draft saved Draft deleted



Similar Discussions: Faraday cup testing
  1. Faraday's cage (Replies: 9)

  2. Faraday's law (Replies: 10)

Loading...