Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

Root mean square in 4.3a

Please login with a confirmed email address before reporting spam

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 5 feb 2013, 07:57 GMT-5
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 5 feb 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

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.