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Four Electrode Method for Impedacne measurement
Posted 18.10.2012, 23:20 GMT-4 Low-Frequency Electromagnetics Version 4.2 1 Reply
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I'm complete a new for COMSOL, but I have to use this for simulation.
Right now I am trying to measure the impedance of the object with 4 electrode method.
I used AC/DC module, Electric Current.
Basically I made 2 separate regions that have different conductivity.
and Put 4 small lines (electrodes), and make one of them terminal of current and one of them ground.
there is a option that I can find the impedance based on the current I put on the terminal
but I want to measure the voltage on other two electrode and measure impedance between them.
NOT the electrode I assigned as the terminal and ground.
I'm attaching the file I'm working on. there are 4 small line on the middle of the object and the two of them on the middle
have not been assigned anything.
Please help me to solve this problem. I really need to figure out this.
One more thing, is this possible to do the same thing in 3D mode? I think I have to improve this simulation in 3D later.
*** now I have file size error.. can't upload file.. what should I do..
I upload the spectrum picture to give basic Idea for what I'm doing..
Attachments:
Hello Choongsoon Kim
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good luck
mohammed abbas