High Sensitivity Piezo Film Sensor Contact Microphone - CM-01B
? Sensitivity: 40V/mm
? Resonance Frequency: 5kHz
? Supply Voltage: 4 - 30VDC
? ?Supply Current: 0.1mA
? Operating Tem?perature: 5 ~ 60°C
? Storage Temperat?ure: -20 ~ 85°C
? High Sensitivity
? Low Cost
- Model Number: CM-01B
- Data Sheet:
- Quantity:
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Product Specification
CM-01B Contact Microphone Specifications
? High Sensitivity
? Robust
? Low Noise
? Piezo Film Technology
? Shielded Cable
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 pick-up 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.
CM-01B Contact Microphone Features
? Broad Bandwidth
? High Sensitivity
? Excellent Impact Resistance
? Lightweight
? Low Cost
CM-01B Contact Microphone Applications
? Electronic Stethoscope
? Bone-conducted Sound Pickup
? General Purpose Contact Microphone
? Vibration/Impact Sensing
CM-01B Contact Microphone Performance Specifications
| 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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