TYPE 4957
10 KHZ Array Microphone
Array Microphone for use in systems requiring a large number of microphones, for example, beamforming arrays, STSF measurements, and non-stationary STSF measurements.
Request PriceArray Microphone Type 4957 is a ¼" pre-polarized microphone suited for use in systems requiring a large number of microphones, such as beamforming arrays, STSF measurements, and non-stationary STSF measurements.
In combination, these microphones have specified and stable phase-matching over wide ranges of temperature and humidity.
USE SCENARIOS
- Measurements using: Spatial Transformation of Sound Fields (STSF) Type 7688, Non-stationary STSF Type 7712, and Beamforming Type 7768
- Hand-held array measurements
- Simultaneous recording of time signals in medium to large microphone arrays, for example, simulated pass-by measurements
- Cost-effective in-car measurements
A rugged protection grid provides an integrated heat shield. The microphone is front-vented for pressure equalization.
The microphone is supplied in a hard box with one to six microphones delivered in a standard microphone box. Seven or more microphones are delivered in a multi-microphone mini-suitcase.
- Capacitance
- pF
- Diameter
- ¼
- Dynamic range
- 32 – 134 dB
- Frequency range
- 50 – 10000 Hz
- Inherent noise
- 32 dB A
- Lower limiting frequency -3dB
- Hz
- Optimised
- Array
- Polarization
- Prepolarized
- Polarization voltages
- 0 V
- Pressure coefficient
- dB/kPa
- Sensitivity
- 11.2 mV/Pa
- TEDS UTID
- 127-0-0-0U
- Temperature coefficient
- db/ºC
- Temperature range
- -10 – 55 C
- Venting
- Front
- Weight
- 3.8 gram
- Sound field
- Special
- Input type
- CCLD IEPE
- Microphone type
- Array
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