Piezo Spiral Wrapped Coaxial Cable * * * * * * Coaxial design piezo sensor Shielded construction Ideal for linear application Rugged Water resistant Piezo film technology DESCRIPTION Piezo cable is another form of piezo polymer sensors. Designed as a coaxial cable, the Piezo polymer is the dielectric between the center core and the outer braid. When the cable is compressed or stretched, a charge or voltage is generated proportional to the stress. Piezo cable has a number of advantages in certain applications. Due to its coaxial design, the cable is self-shielded, allowing its use in a high EMI environment. The piezo cable can be spliced to passive coax, using standard coax splice techniques. It is extremely rugged and will stand up to heavy loads. Its linear format makes it ideal for monitoring large areas. In the cable construction, two narrow ribbons of PVDF film are helically wound around the inner conductor, which comprises 20 awg stranded silver-plated copper wire. The cable is then braided, and jacketed with an extruded high-density polyethylene. The cable is available in short lengths (in multiples of 1 m), or as single cut lengths wound on spools. FEATURES * Passive, long length sensor * Very tough, water resistant and flexible * Temperature stability to 85 C * Self-shielded coaxial construction * High voltage response * Low impedance per unit length * Field repairable * Simplified interconnections Piezo Spiral Wrapped Coaxial Cable Rev 1 APPLICATIONS * Perimeter intrusion detection * Safety and security fencing * Door edge/vehicle bumper switch * Cable tampering detector * Weather sensing/rain/hail * Structural NDT/strain/vibration * Underwater acoustics * Patient mattress monitor * Sports scoring/foul line www.meas-spec.com 1/2 08/15/2011 Piezo Spiral Wrapped Coaxial Cable PERFORMANCE SPECIFICATIONS Properties Typical Value Units Outside Diameter Capacitance @ 1 kHz 2.69 950 mm pF/m Weight Resistance (shield) Tan Delta (dissipation factor) Hydrostatic Piezo Coefficient Resistance (center core) 14.5 47 0.016 20 31 kg/km DCR/km @ 1 kHz pC/N DCR/km DIMENSIONS IN INCHES (mm) Copper Braid Polyethylene Outer Jacket PVDF Piezo Film Tape (Spiral Wrap) Standard Center Core 20 AWG Cable - Spiral Wrap Description 20 AWG Piezo Cable (spiral) Dimensions Center Core Outside Diameter .040 (1.02) .105 (2.67) Capacitance pF/ft (pF/m) Part Number 279 (980) 1005801-1 TECHNICAL CONTACT INFORMATION North America Europe Asia Measurement Specialties, Inc. 1000 Lucas Way Hampton, VA 23666 Tel: 1-800-745-8008 Fax: 1-757-766-4297 Sales: piezo@meas-spec.com MEAS Deutschland GmbH Hauert 13 44227 Dortmund Germany Sales & Customer Service: +49 (0)231 9740 21 Technical Support: +44 (0)138 38700 01 Email: piezoeurope@meas-spec.com Measurement Specialties (China) Ltd. No. 26 Langshan Road, High-Tech Park (North) Nanshan District, Shenzhen 518057 Tel: +86 755 3330 5068 Email: sales.china@meas-spec.com The information in this sheet has been carefully reviewed and is believed to be accurate; however, no responsibility is assumed for inaccuracies. Furthermore, this information does not convey to the purchaser of such devices any license under the patent rights to the manufacturer. Measurement Specialties, Inc. reserves the right to make changes without further notice to any product herein. Measurement Specialties, Inc. makes no warranty, representation or guarantee regarding the suitability of its product for any particular purpose, nor does Measurement Specialties, Inc. assume any liability arising out of the application or use of any product or circuit and specifically disclaims any and all liability, including without limitation consequential or incidental damages. Typical parameters can and do vary in different applications. All operating parameters must be validated for each customer application by customer's technical experts. Measurement Specialties, Inc. does not convey any license under its patent rights nor the rights of others. Piezo Spiral Wrapped Coaxial Cable Rev 1 www.meas-spec.com 2/2 08/15/2011 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: TE Connectivity: 1005801-1