CM-01B

CONTACT MICROPHONE CM-01B SPECIFICATIONS      DIMENSIONS 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. FEATURES      Broad Bandwidth High Sensitivity Excellent Impact Resistance Lightweight Low Cost APPLICATIONS     SENSOR SOLUTIONS /// CM-01 Rev 1 Electronic Stethoscope Bone-conducted Sound Pickup General Purpose Contact Microphone Vibration/Impact Sensing 9/2015 Page 1 CONTACT MICROPHONE CM-01B PERFORMANCE SPECIFICATIONS CHARACTERISTICS Sensitivity Lower Limiting Frequency (-3 dB) Upper Limiting Frequency (+3 dB) Resonance Frequency Spring Constant Electronic Noise Supply Voltage Supply Current Operating Temperature Storage Temperature Min 4 Typ 40 8 2.2 5 20 1 5 0.1 Max 30 +5 -20 +60 +85 Units V/mm Hz kHz kHz N/m mV pk-pk V-DC mA C C TYPICAL FREQUENCY RESPONSE Typical Frequency Response Sensitivity (dB re 1 V/mm) 70 60 50 40 30 20 10 0 10 100 1000 10000 Frequency (Hz) The above plot shows a typical frequency response curve for a device clamped below and subjected to piston-like displacement to the face of the rubber sensing pad. SENSOR SOLUTIONS /// CM-01 Rev 1 9/2015 Page 2 CONTACT MICROPHONE CM-01B INTERNAL SCHEMATIC Shield (braid): GND Red wire: VCC, +5 V Yellow wire: Vout R4 = 100 MΩ C1 = C2 = 0.1 µF R1 = R2 = 300 KΩ R3 = 10 KΩ ORDERING INFORMATION Model No. CM-01B Part No. 1007079-1 NORTH AMERICA EUROPE ASIA Measurement Specialties, Inc., a TE Connectivity Company 1000 Lucas Way Hampton, VA 23666 Sales and Customer Service Tel: +1-800-745-8008 or +1-757-766-1500 Fax: +1-757-766-4297 Technical Support Email: piezo@meas-spec.com MEAS Deutschland GmbH a TE Connectivity Company Hauert 13 44227 Dortmund Germany Sales and Customer Service Tel: +49 (0)231 9740 21 Technical Support Tel: +49 (0)6074 862822 Email: piezoeurope@meas-spec.com Measurement Specialties (China), Ltd., a TE Connectivity Company F1.6-4D, Tian An Development Compound ShenZhen, China 518048 Sales and Customer Service Tel: +86 755 8330 1004 Technical Support Email: piezo@meas-spec.com TE.com/sensorsolutions Measurement Specialties, Inc., a TE Connectivity company. Measurement Specialties, TE Connectivity, TE Connectivity (logo) and EVERY CONNECTION COUNTS are trademarks. All other logos, products and/or company names referred to herein might be trademarks of their respective owners. The information given herein, including drawings, illustrations and schematics which are intended for illustration purposes only, is believed to be reliable. However, TE Connectivity makes no warranties as to its accuracy or completeness and disclaims any liability in connection with its use. TE Connectivity‘s obligations shall only be as set forth in TE Connectivity‘s Standard Terms and Conditions of Sale for this product and in no case will TE Connectivity be liable for any incidental, indirect or consequential damages arising out of the sale, resale, use or misuse of the product. Users of TE Connectivity products should make their own evaluation to determine the suitability of each such product for the specific application. © 2015 TE Connectivity Ltd. family of companies SENSOR SOLUTIONS /// CM-01 Rev 1 All Rights Reserved. 9/2015 Page 3