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PU regular
Sound Velocity Sensors / puregular
Scan & Paint
Scan & Listen
PU regular

PU regular

The ½ inch PU regular 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 regular can be used for a variety of applications such as the determination of sound intensity, sound power, acoustic absorption, sound leakages etc. 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 40 dB.

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

The sensor is being used in the following systems:

PU regular

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