TYPE 4966-L-001

1/2" Free-field Microphone With Type 2669-L CCLD Preamplifier, Prepolarized

Free-field microphone with LEMO Connector for high sound pressure level (SPL) measurements or for checking the integrity of the microphone measurement channel.

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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

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Specifications

Capacitance: 14 pF
Diameter: ½"
Dyn. range: 15.2 – 144 dB
Freq. 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 ℃
Venting: Rear
Weight: gram
Sound field: Free-field
Input type: Classic
Microphone type: Free field