Measurement Specialties manufactures Piezo polymer into a coaxial cabling format, where 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. Continuous lengths of Piezo cable are available in a variety of different gages and construction formats. As a standard product, it is offered as a 20 AWG center core with a polyethylene outer jacket, which is useful for large area sensing applications such as physical security, proximity transducers, traffic sensors and security fence transducers.
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. It is extremely rugged, and will stand up to heavy loads as with truck axle counting. Its linear format makes it ideal for monitoring large areas. Two versions of the Piezo cable are offered: copolymer and spiral wrapped PVDF.
