Low cost composite transducer

Details Low cost composite transducer Low cost composite transducer

1990-07-19

1998-12-22

Eldred, J. Woodrow

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

367160, 367161, 310334, 310800, H04R 1700

Patent

active

058525890

ABSTRACT:
A composite sensor includes at least one layer comprising a piezoelectric material such as a molecularly poled polymer material or a ceramic material having disposed therebetween a material which enhances the piezoelectric properties of the piezoelectric material. One pair of edges of said composite sensor are constrained from expanding in response to a force applied to the sensor.

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patent: 4395908 (1983-08-01), Shopland
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patent: 4656384 (1987-04-01), Magori
patent: 4677337 (1987-06-01), Kleinschmidt et al.
patent: 4709361 (1987-11-01), Dahlstrom et al.
patent: 4939405 (1990-07-01), Okuyama et al.
Donald Ricketts, Model for a Piezoelectric Polymer Flexural Plate Hydrophone, J. Acoust. Soc. Am. 70(4), Oct. 1981, pp. 929-935.

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