CM-01B Contact Microphone – Piezo Sensor

The CM-01B Contact Microphone uses sensitive but robust PVDF piezo film combined with a low-noise electronic preamplifier to provide a unique sound or vibration pickup with buffered output.

CM-01B Contact Microphone

Description: The CM-01B Contact Microphone uses sensitive but robust PVDF piezo film combined with a low-noise electronic preamplifier to provide a unique sound or vibration pickup with buffered output. The design minimizes external acoustic noise while offering extremely high sensitivity to vibration applied to the central rubber pad. The CM-01B is ideal for detecting body sounds.

Features:

  • Robust
  • Low Noise
  • Piezo Film Technology
  • Shielded Cable
  • Broad Bandwidth
  • High Sensitivity
  • Excellent Impact Resistance
  • Lightweight
  • Low Cost

 

Parameter Min Typ Max Units
Sensitivity 40 V/mm
Lower Limiting Frequency (-3 dB) 8 Hz
Upper Limiting Frequency ( 3 dB) 2.2 kHz
Resonance Frequency 5 kHz
Spring Constant 20 N/m
Electronic Noise 1 mVpk-pk
Supply Voltage 4 5 30 V-DC
Supply Current 0.1 mA
Operating Temperature 5 60 °C
Storage Temperature -20 85 °C

 

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Operating Temperature 5 60 °C
Storage Temperature -20 85 °C