Title :
Development of a (3,1) drive multifilm piezopolymer hydrophone
Author :
Bhat, J. Jagannath ; Pillai, P. R Saseendran
Author_Institution :
Dept. of Electron., Cochin Univ. of Sci. & Technol., India
Abstract :
A modified (3,1) drive hydrophone design described here utilizes polarized piezopolymer films taut in the stretch direction by a reformed structural construction. It mainly consists of two opposed polymer films attached to a phosphor bronze diaphragm through a perspex structure. Enhancement in sensitivity is achieved, by connecting the films electrically in series thereby adding up the voltages developed across them due to a given acoustic pressure. The response of the hydrophone for individual films and for their series combination, are measured from 300 Hz to 4 kHz.<>
Keywords :
acoustic intensity; hydrophones; piezoelectric transducers; polymer films; (3,1) drive hydrophone design; 300 Hz to 4 kHz; acoustic pressure; multifilm piezopolymer hydrophone; perspex structure; phosphor bronze diaphragm; polarized piezopolymer films; reformed structural construction; sensitivity; series combination; stretch direction; Acoustic measurements; Acoustic signal detection; Ceramics; Frequency; Phosphors; Polarization; Polymer films; Sonar equipment; Stress; Voltage;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
