TYPE 4944-W-007

1/4" prepolarized, pressure-field microphone with CCLD DeltaTron preamplifier

Rear-vented pressure field microphone with 10 – 32 UNF connector, suitable for gas leak detection.

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USE SCENARIOS

  • Suitable for gas leak detection
    • Because the vent is positioned outside the sound field, venting takes place through the preamplifier housing and particles in the test environment cannot enter the microphone through the vent. Some types of particles can damage the microphone by destabilising the internal charges stored in the electret
Capacitance
pF
Diameter
1/4
Inherent noise
48 dB A
Lower limiting frequency -3dB
16 Hz
Optimised
Pressure Field
Polarization
Prepolarized
Polarization voltages
V
Pressure coefficient
-0.003 dB/kPa
Sensitivity
0.9 mV/Pa
Temperature coefficient
0.009 dB/ºC
Venting
Rear
Weight
gram
Sound field
Pressure-field
Input type
CCLD IEPE
Microphone type
Pressure Field