High frequency applications of PZT/polymer composite materials

Abstract

Abstract PZT/polymer composite hydrophone materials of four connectivity patterns have been evaluated for high frequency applications such as ultrasonic medical diagnosis and nondestructive testing. The amplitude and bandwidth of the pulse echo test are used as the principal figure of merit. Transducers made with thin PZT rods cast in an epoxy matrix have pulse echo sensitivity comparable to unmatched commercial transducers.