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PU mini Particle Velocity Probe

PU mini Particle Velocity Probe

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The ½ inch PU mini is a sound probe combining two sensors: a traditional microphone and a microflown. Directly at one spot the sound pressure and acoustic particle velocity are measured. Any sound field is described by two complementary acoustic properties, the scalar value ‘sound pressure’ and the vector value ‘particle velocity’. In the acoustic near field, acoustic particle velocity is the dominant acoustic property. The Microflown is the only sensor which physically can measure the acoustic particle velocity directly.  The PU mini can be used for a variety of applications but is mainly used in array applications such as scattered arrays for Panel Noise Contribution Analysis, free or fixed grid arrays for the Near Field Acoustic Camera etc. Also the determination of sound intensity, sound power, acoustic absorption can be done with the PU mini. Beneficial of the measurement principle is that measurement can be done in-situ under realistic condition.  The sensors  have no need to create anechoic conditions and can be used within closed cavities, such as a car interior, the sensor is not having  P/I ( pressure over intensity ) index problems.  The susceptibility of a microflown compared to a microphone to background noise and reflections is minus 40dB.

The PU mini comes standard including a 2 channel signal conditioner ( MFSC-2 ), the necessary cabling, calibration report and two years warranty.

For the PU mini specifications click here

To download the PU mini datasheet click here