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What does RMS mean


baszha

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On 8/10/2018 at 9:31 AM, Andy W said:

 

Correct.  Saying "RMS power" or "Watts RMS" is a misnomer -- there is no such thing as a "Watt RMS", but people have using it for so long that it have entered into the vernacular.

 

And the typical RMS calculation (peak voltage of the sine wave divided by the square root of two) is only true for sine waves.  For pure square waves the RMS voltage is the peak voltage.

 

you  may wish to reconsider  " For pure square waves the RMS voltage is the peak voltage."     If you follow the wiki link I provided they give you some rms values of simple waveforms. For the rest you need to calculate.   Or use a true RMS meter that is good for any waveform. 

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