4966-A-031型

配备A计权CCLD前置放大器和BNC接头的预极化自由场传声器

专用于消除低频干扰,例如车身吊臂或道路噪声

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使用场景

  • 适用于消除低频干扰——例如风振颤动
    • 因为它内置了A计权滤波器,可以滤除低频干扰
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