The above Ad will no longer appear after you Sign Up for Free!


Discussion in 'Wiki' started by derekleffew, Nov 28, 2008.

  1. derekleffew

    derekleffew Resident Curmudgeon Senior Team Premium Member

    Likes Received:
    Las Vegas, NV, USA
    Root Mean Square. A method of averaging, most often used in the theatre when discussing DMMs in measuring voltage and current. See Learn Root Mean Square(RMS)/Quadratic Mean(QM) tutorial, definition, example, formula.

    RMS is most applicable when describing or measuring the power contained in an AC waveform that is not a pure sine wave. A common place in the theatre where this occurs is on the output of a phase-control dimmer. Likewise, the current drawn by a phase-control dimmer is non-sinusoidal, or nonlinear. A true-RMS meter must be used for accurately measuring both voltage and current on a phase-control dimmer.

    "Crest factor" is a measure of just how non-sinusoidal a particular waveform is.

    Last edited by a moderator: Nov 28, 2008

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice