Square and rectangular electroacoustic bender bar transducer

Details Square and rectangular electroacoustic bender bar transducer Square and rectangular electroacoustic bender bar transducer

1977-09-01

1979-02-20

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310331, 310363, H01L 4110

Patent

active

041409361

ABSTRACT:
The transducer's active elements are a plurality of thin, narrow, piezoelric bars bonded side-by-side to a flexible plate. Electrically, a circuit is coupled across the thickness of each bar or strip to include the bars as a plurality of parallel capacitors. The plate has a fixed length that is maintained during operation. Consequently, piezoelectric length expansions and contractions of the bars are translated into an oscillating bending motion of the bars and the plate for transducing purposes.

REFERENCES:
patent: 2769867 (1956-11-01), Crownover et al.
patent: 3127527 (1964-03-01), Elston et al.
patent: 3360664 (1967-12-01), Straube
patent: 3370187 (1968-02-01), Straube

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