Type 40AC


Type 40AC
The Type 40AC is a high precision microphone for laboratory work and as a working standard microphone in calibration laboratories. It covers a frequency range from 3.15 Hz to 40 kHz. Its small size and lower sensitivity make it extremely robust and stable.
The Type 40AC is capable of measuring sound levels up to 160 dB re. 20µPa.
Specifications Type 40AC (WS2F)
Specifications Type 40AC (WS2F)
Sensitivity:
12.5 mV/Pa
Dynamic range:
27 - 160 dB re. 20µPa
Frequency range:
3.15 Hz - 40 kHz
Polarisation voltage:
200 V
Outside diameter (with protection grid):
13.2 mm
Length: (with and
12.5 mm
without protection grid):
11.6 mm
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