Piezo Spiral Wrapped Coaxial Cable
Piezo Spiral Wrapped Coaxial Cable Rev 1 www.meas-spec.com 08/15/2011
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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 APPLICATIONS
•
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
•
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
• Coaxial design piezo sensor
• Shielded construction
• Ideal for linear application
• Rugged
• Water resistant
• Piezo film technology
Piezo Spiral Wrapped Coaxial Cable
Piezo Spiral Wrapped Coaxial Cable Rev 1 www.meas-spec.com 08/15/2011
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PERFORMANCE SPECIFICATIONS
Properties
Typical Value
Units
Outside Diameter 2.69 mm
Capacitance @ 1 kHz 950 pF/m
Weight 14.5 kg/km
Resistance (shield) 47 DCR/km
Tan Delta (dissipation factor) 0.016 @ 1 kHz
Hydrostatic Piezo Coefficient 20 pC/N
Resistance (center core) 31 DCR/km
DIMENSIONS
IN INCHES (mm)
Copper Braid
Standard Center Core
PVDF Piezo Film Tape (Spiral Wrap)
Polyethylene
Outer Jacket
20 AWG Cable - Spiral Wrap
Description Dimensions Capacitance
pF/ft (pF/m) Part Number
Center
Core
Outside
Diameter
20 AWG Piezo Cable (spiral) .040 (1.02) .105 (2.67) 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.
