Method of detecting sound in water using piezoelectric-polymer composites with 0-3 connectivity

摘要

A hydrophone device is provided with a piezoelectric ceramic-polymer composite of 0-3 connectivity in which the piezoelectric filler comprises a solid solution of PBTiO3-BiFeO3 wherein the solid solution contains 50-80 wt. % of the BiFeO3. The piezoelectric ceramic-polymer composite has large hydrostatic piezoelectric charge and voltage coefficients which are desirable in hydrophone devices.