Short Array Microphone for 20 kHz, Prepolarized
Short array microphone designed for use in our hand-held and foldable microphone array systems.견적 요청하기
Array Microphone Type 4959 is a ¼" prepolarized microphone specially designed for use in Brüel & Kjær’s hand-held and foldable arrays.
- In Brüel & Kjær hand-held and foldable arrays
Type 4959 microphones have good, stable amplitude and phasematching over wide ranges of temperature and humidity. Their frequency response is optimised for a flat response in a pressure field.
Each microphone’s built-in TEDS (Transducer Electronic Data Sheet) contains information about the complex transfer function, enabling applications to use data for individual transducers, resulting in more precise measurements.
The preamplifier is an industry standard DeltaTron (constant current line drive) type, allowing the use of the same coaxial cable for signal, power supply and TEDS.
A rugged protection grid provides an integrated heat shield. The microphone is front-vented for pressure equalization.
- Dyn. range
- 32 – 134 dB
- Freq. range
- 50 – 20000 Hz
- Inherent noise
- 32 dB A
- Lower limiting frequency -3dB
- Polarization voltages
- Pressure coefficient
- 11.2 mV/Pa
- TEDS UTID
- Temperature coefficient
- Temperature range
- -10 – 55 ℃
- 3 gram
- Sound field
- Input type
- CCLD IEPE
- Microphone type
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