Measurement of sound intensity involves determining the sound pressure and the particle velocity at the same position simultaneously. The p-p method for measuring intensity uses two pressure microphones that determine the particle velocity component in the direction of the axis of the probe by a finite-difference approximation to the pressure gradient in Euler's equation of motion, and the sound pressure is simply the average of the two pressure signals. The p-u method uses a sound intensity probe that combines an acoustic particle velocity transducer with a pressure microphone (p-u probe). These two sound intensity methods could be used to measure the sound power level of sources.


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    Title :

    A Comparison of Two Different Sound Intensity Methods to Measure the Sound Power Level


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    2008 SAE Brasil Congress and Exhibit ; 2008



    Publication date :

    2008-10-07




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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