Underwater Behavior of Free-Flooded Ceramic Ring Transducers

[+] Author and Article Information
J. P. D. Wilkinson, M. J. DaCosta

General Electric Research and Development Center, Schenectady, N. Y.

J. Eng. Ind 93(3), 819-825 (Aug 01, 1971) (7 pages) doi:10.1115/1.3428023 History: Received July 08, 1970; Online July 15, 2010


A numerical method is presented for the study of the underwater behavior of piezoelectric ceramic transducers in the shape of a shell of revolution, which are known as free-flooded ring transducers. The ceramic is circumferentially polarized and may be prestressed circumferentially by a layer of fiberglass. The method computes stresses within the transducer, its electrical admittance, and the acoustic radiation pressure field in the water. The theory is compared with experimental results from a circumferentially polarized PZT-4 cylindrical ring, and good agreement is obtained.

Copyright © 1971 by ASME
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