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How can I calculate RMS of Electric Field?

Topics: 3.5a, AC/DC Module, MEMS, Microfluidics

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Kasra Pourang

Kasra Pourang

November 25, 2011 8:34am UTC

How can I calculate RMS of Electric Field?

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?

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mina asghari

mina asghari

December 14, 2011 8:15pm UTC in response to Kasra Pourang

Re: How can I calculate RMS of Electric Field?

please answer??????????

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Song Liu

Song Liu

February 6, 2012 5:42am UTC in response to Kasra Pourang

Re: How can I calculate RMS of Electric Field?

I tried the DC simulation instead. I don't know if it's appropriate or not.

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Ivar Kjelberg

Ivar Kjelberg
Moderator

February 6, 2012 6:27am UTC in response to Kasra Pourang

Re: How can I calculate RMS of Electric Field?

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

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Good luck
Ivar

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