P 742

P 742

  • Fast Pressure Variations
  • Surges & Dynamic Blasts
  • High Pressure (10,000 psi)
  • 9 pC/psi Sensitivity
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The Columbia Model P-742 High Intensity Acoustic Sensor (Microphone) is designed for the measurement of high level dynamic pressure events, including high intensity sound pressure levels, over a frequency range of 2 to 10KHz. It may be used at temperatures up to +150 Degrees C.

The all-welded case construction of the Model P-742 provides the advantages of very high natural frequency and exceptional mechanical isolation along with extreme ruggedness. This flush diaphragm device conveniently mounts with a 1/8" male pipe thread. Consult the factory for customized versions of this sensor.

With Connector Mated or Protected, Unit is Hermetically Sealed.


Charge Sensitivity 9 pC/psi
Pressure Range 10,000 psi
Pressure Overload 20,000 psi Max.
Resonant Frequency 100 KHz
Amplitude Linearity +/-2%
Capacitance 75 pF
Grounding Case Grounded
Frequency Response 2 To 10,000 Hz
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