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How can I calculate RMS of Electric Field?

Posted Nov 25, 2011, 3:34 a.m. EST Low-Frequency Electromagnetics, MEMS & Nanotechnology, MEMS & Piezoelectric Devices, Microfluidics Version 3.5a 3 Replies

Kasra Pourang
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Hi dear friends,

I have modeled a simple dielectrophoresis design using AC/DC Module in COMSOL 3.5a. A 7.5 V, 100 KHz voltage was applied to the electrodes and the model was solved in transient mode.

I can see Voltage and norm of Electric Field using Post Processing menu. However, I want to visualize RMS of Electric Field. Since E(rms)=sqrt(int_0^T(E^2)), the main problem is calculating integral in COMSOL.

Could anybody help me, please?
3 Replies Last Post Feb 6, 2012, 1:27 a.m. EST
mina asghari
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Posted: 1 decade ago Dec 14, 2011, 3:15 p.m. EST
please answer??????????
please answer??????????
Andy Liu
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Posted: 1 decade ago Feb 6, 2012, 12:42 a.m. EST
I tried the DC simulation instead. I don't know if it's appropriate or not.
I tried the DC simulation instead. I don't know if it's appropriate or not.
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago Feb 6, 2012, 1:27 a.m. EST
Hi
check your variables in the uquation view, I beleive the rms value is already defined therein, in 3.5a the doc was rather exhasitve about all internal variables too

--
Good luck
Ivar
Hi check your variables in the uquation view, I beleive the rms value is already defined therein, in 3.5a the doc was rather exhasitve about all internal variables too -- Good luck Ivar

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