Measurement Specialties manufactures Piezo polymer into a coaxial cable format, where the Piezo polymer is the “dielectric” between the center core and the outer braid. Two versions of the Piezo cable are offered: copolymer and spiral wrapped PVDF. When the cable is compressed or stretched, a charge or voltage is generated proportional to the stress.
Piezo cable 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.