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Polarization Hysteresis Ciruit

by welatiger
Tags: ciruit, hysteresis, polarization
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welatiger
#1
Nov21-12, 10:09 AM
P: 82
Hi all,
I want to measure electric polarization hysteresis loop so i need the electric circuit to measure it.
The circuit mostly contains a resistor and a capacitance, i need to what is the exact value of them ?

Please tell me if there is a reference for that
Thank you
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welatiger
#2
Nov21-12, 10:34 AM
P: 82
Quote Quote by welatiger View Post
Hi all,
I want to measure electric polarization hysteresis loop so i need the electric circuit to measure it.
The circuit mostly contains a resistor and a capacitance, i need to what is the exact value of them ?

Please tell me if there is a reference for that
Thank you
note : the circuit called Sawyer-Tower Circuit
Enthalpy
#3
Nov23-12, 04:43 PM
P: 661
Depending on the material, charge release can be very slow, for instance in electrolytic capacitors. In such a case, the only sensible circuit is to disconnect completely the capacitor, keep it clean in a dry atmosphere, and reconnect it only for the measure. It can take several days before the last 0.1% of charge is released, while the first 20% which are absorbed by polarization are available in few seconds.


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