TIPO 4966-H-041

Microfone de campo livre de ½ polegada com pré-amplificador de alta temperatura Tipo 1706, 6,3 Hz a 20 kHz, pré-polarizado

Projetado para medições de campo livre de alta precisão, em que é necessário um microfone com alta sensibilidade.

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Type 4966-A-031 is designed for eliminating low-frequency disturbance, such as body boom or road noise.

USER SCENARIOS


  • Automotive noise measurements (interior and exterior noise)
  • Industrial noise measurements (sound power)
  • Environmental noise measurements
  • Electroacoustic testing
  • Acoustic measurements requiring a robust and reliable ½-inch free-field microphone operating at temperatures up to 125 °C (257 °F)
Capacitance
14 pF
Diameter
½"
Dynamic range
18 – 131 dB
Frequency range
A-weighted – 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 – 65 C
Venting
Rear
Weight
gram
Sound field
Free-field
Input type
CCLD IEPE
Microphone type
Free field