TYPE 4966
½-inch Free-field Microphone, Prepolarized, 5 Hz – 20 kHz
Free-field microphone designed for high‐precision and high sensitivity measurements with a frequency response of 5 Hz to 20 kHz.
Request PriceA robust and stable free‐field microphone cartridge designed for high‐precision acoustic measurements. Type 4966 is developed and refined for measurements where a high sensitivity microphone with a full 20 kHz bandwidth is preferred and is optimized for use with the protection grid in place.
Microphone Type 4966 is prepolarized, so it is well suited for use in battery-operated equipment and environments with high humidity.
USE SCENARIOS
- Precision sound‐measurements
- General purpose sound‐measurements
- Electroacoustic measurements
Being prepolarized, Type 4966 can be used with both CCLD* and classical Brüel & Kjær preamplifiers.
- Capacitance
- 14 pF
- Diameter
- ½"
- Dyn. range
- 14.6 – 144 dB
- Freq. range
- 5 – 20000 Hz
- Inherent noise
- 14.6 dB A
- Lower limiting frequency -3dB
- 3 Hz
- Optimised
- Free field
- Polarization
- Prepolarized
- Polarization voltages
- 0 V
- Pressure coefficient
- -0.012 dB/kPa
- Sensitivity
- 50 mV/Pa
- Standards
- IEC 61094-4 WS2F
- Temperature coefficient
- 0.003 dB/ºC
- Temperature range
- -50 – 150 ℃
- Venting
- Rear
- Weight
- gram
- Sound field
- Free-field
- Input type
- CCLD IEPE
- Microphone type
- Free field