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Root mean square in 4.3a

Posted 05.02.2013, 07:08 GMT-5 Version 4.3a 1 Reply

Marouane Frini
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Hi

I need to calculate the Root mean square (RMS) of a voltage. Are there any predefined functions in Comsol to do so. I searched the docs and got no clue on that.

Thanks a lot
1 Reply Last Post 05.02.2013, 07:57 GMT-5
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago 05.02.2013, 07:57 GMT-5
Hi

not directly, but if you are doing a frequency domain sweep, you get amplitudes out the RMS are sqrt(2) apart, provided you have any phase info under control

For certain table operation in the derived Variable section, you can apply "Data Series operations" columnise, there you have an RMS operator

--
Good luck
Ivar
Hi not directly, but if you are doing a frequency domain sweep, you get amplitudes out the RMS are sqrt(2) apart, provided you have any phase info under control For certain table operation in the derived Variable section, you can apply "Data Series operations" columnise, there you have an RMS operator -- Good luck Ivar

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