TYPE 4966-L-001

½″ prepolarized free-field microphone with classical microphone preamplifier and 7-pin LEMO connector

Designed for high sound pressure level (SPL) measurements, or if the integrity of the microphone measurement channel needs to be checked.

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USER SCENARIOS

  • Suitable for measuring high sound pressure levels – such as in the proximity of a jet engine
    • Because it has a wide dynamic range all way up to 144dB
  • Suitable for checking the condition of a microphone before measuring, in situations where the microphone is a distance from both the user and other microphones, such as in pass-by, flyover and distributed measurements.
    • Because it features CIC (charge injection calibration) that allows the user to check the microphone’s condition by sending a signal
Capacitance
14 pF
Diameter
½"
Dynamic range
15.2 – 144 dB
Frequency range
6.3 – 20000 Hz
Inherent noise
16.5 dB A
Lower limiting frequency -3dB
3 Hz
Optimised
Free field
Polarization
Prepolarized
Polarization voltages
0 V
Pressure coefficient
-0.01 dB/kPa
Sensitivity
48.4 mV/Pa
Temperature coefficient
0.003 db/ºC
Temperature range
-20 – 60 C
Venting
Rear
Weight
gram
Sound field
Free-field
Input type
Classic
Microphone type
Free field