Measurement of Complex Coefficients for Thick PVDF Polymer

Abstract

A new measuring technique of complex coefficients for low k2Q, piezoelectric materials has been described. The complex elastic, dielectric and piezoelectric coefficients for the longitudinal length mode and for the thickness mode of thick polymer produced at Raytheon, and their temperature and frequency dependence are measured by this technique. Following the method of time-temperature superposition, logoa, is plotted as abscissa. The real parts of d,,, d,, poisson ratio and their temperature dependence are also obtained.