Some compliance and piezoelectric properties of voided polyvinylidene fluoride (PVDF)

Abstract

Measurements of the compliances parallel and perpendicular to the stretched direction (s11 and s22, respectively) as well as the piezoelectric coefficients g31 and g32 were made for Thorn-EMI voided piezoelectric polyvinylidene fluoride. The measurement method, a simple mass-spring system fed into a dual-channel spectrum analyzer, is described. Although all four measured quantities increased monotonically with increasing temperature, no glass-to-rubber transitions were encountered within the (− 40 to + 30) °C and (200 to 1000) Hz temperature and frequency ranges covered. [Work supported by ONR Code 220B.]