Monopole sound sources (i.e. omni directional sound sources with a known volume velocity) are essential for reciprocal measurements used in vehicle interior panel noise contribution analysis. Until recently, these monopole sound sources use a sound pressure transducer sensor as a reference sensor. A novel monopole sound source principle is demonstrated that uses a Microflown (acoustic particle velocity) sensor as a reference sensor.As compared to a sound source that uses a sound pressure transducer as a reference sensor, the new sound sources demonstrated are relatively easy to calibrate, not sensitive to changes in ambient temperatures, and suitable to use in all sorts of acoustic environments.
Microflown based monopole sound sources for reciprocal measurements
Sae Technical Papers
SAE Brasil Noise and Vibration Conference ; 2008
2008-03-30
Conference paper
English
Microflown based monopole sound sources for reciprocal measurements
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