Recent development in the application of 0-3 piezoelectric composites for hydrophone arrays

Author

Ting, Robert Y. ; Geil, Fred G.

Author_Institution

US Naval Res. Lab., Orlando, FL, USA

fYear

1990

fDate

6-8 Jun 1990

Firstpage

14

Lastpage

17

Abstract

Piezoelectric composites of the 0-3 type were considered as alternatives to thick-film polyvinylidene fluoride (PVDF) for application in the development of large-area hydrophones. Small hydrophone arrays were fabricated and their acoustical performance was determined. In addition to a constant free-field voltage sensitivity over a broad frequency range, a near-zero level of acoustic contamination due to interelement coupling was also demonstrated, as indicated by the measured directivity patterns and relative phase responses. The test results are compared with those of similar PVDF arrays, and the merit of material selection is discussed

Keywords

composite materials; hydrophones; piezoelectric materials; piezoelectric transducers; 0-3 piezoelectric composites; acoustic contamination; acoustical performance; constant free-field voltage sensitivity; directivity patterns; hydrophone arrays; interelement coupling; large-area hydrophones; near-zero level; relative phase responses; Acoustic measurements; Acoustic testing; Ceramics; Frequency measurement; Laboratories; Materials testing; Sensor arrays; Sonar equipment; Transmission line matrix methods; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics, 1990., IEEE 7th International Symposium on

Conference_Location

Urbana-Champaign, IL

Print_ISBN

0-7803-0190-0

Type

conf

DOI

10.1109/ISAF.1990.200189

Filename

200189