Sound Intensity / Sound Power

ACI conducts sound intensity and sound power level measurements using a portable dual microphone intensity probe with a digital camera and motion tracking capability.


The result is a color contour map of the noise producing equipment at various frequencies.  This can be used for specific noise source identification  

Sound Power Levels can be measured as per ISO 9614-2



Standards and Guidelines:

  • ISO 9614-2:  Determination of sound power levels of noise sources using intensity
  • ISO 3744: Determination of sound power levels and sound energy levels of noise sources using sound pressure.
  • IEEE C57.12.90-2010:  Standard test code for Liquid-Immersed distribution, power, and regulating transformers.


Sound Power Level Measurement of Chiller Unit
Sound Power Level Measurement of Chiller Unit

                         Typical Sound Intensity / Sound Power Projects:

  • Measurements for ISO 9614-2
  • Industrial Mechanical Equipment
  • Architectural Acoustics
  • Specific Noise Source Identification

Portfolio:       Oil and Gas / Industrial / Municipal

Equipment Used:  Sound Intensity - Sound Power