Broadband electroacoustic transducer

Details Broadband electroacoustic transducer Broadband electroacoustic transducer

1992-05-27

1993-07-20

Eldred, J. Woodrow

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

367159, 367162, 367166, 310334, 310337, H04R 1700

Patent

active

052299805

ABSTRACT:
A broadband electroacoustic transducer is disclosed which provides an improved response over a relatively broad range of frequencies. The transducer includes a plurality of tines extending between the outer circumferential surfaces of a pair of piezoelectric cylinders. The cylinders are disposed about a common axis and are separated by a gap. The tines extend longitudinally across the gap from one cylinder to the other. Each tine is separated from the adjacent tines by a space which is sized to prevent contact between the tines when the cylinders radially oscillate. A pre-stress wrap is disposed over the tines on both sides of the gap to provide a static, inwardly radial force on the cylinders.

REFERENCES:
patent: 2775749 (1956-12-01), Sussman
patent: 3111595 (1963-11-01), Junger
patent: 3474403 (1969-10-01), Massa et al.
patent: 3716828 (1973-02-01), Massa
patent: 3972018 (1976-07-01), Erickson
patent: 4156824 (1979-05-01), Pence, Jr.
patent: 4220887 (1980-09-01), Kompanek
patent: 4823041 (1989-04-01), Inoue et al.
patent: 4823327 (1989-04-01), Hilmers

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