Deep ocean wide band acoustic baffle

Details Deep ocean wide band acoustic baffle Deep ocean wide band acoustic baffle

1983-06-20

1984-12-11

Tudor, Harold J.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

367172, 367176, 367153, H04R 1700

Patent

active

044882718

ABSTRACT:
A hydroacoustic transducer provides an improved hemispherical radiation pern throughout a wide range of operating depths. A can-shaped transducer is nestled in the inside of a hat-shaped array of hollow spheres. Resiliently mounting the spheres with respect to each other and a hat-shaped shell holds the array away from the surface of the transducer and layering the hollow spheres assures the hemispherical pattern. Fashioning the spheres from hemispherical shells of aluminum and bonding them together makes the array insensitive to greater or lesser hydrostatic pressures and potting the array in polyurethane presents a more rugged structure capable of withstanding the routine abuses of the ocean environment.

REFERENCES:
patent: 2473971 (1949-06-01), Ross
patent: 2795709 (1957-06-01), Camp
patent: 3038551 (1962-06-01), McCoy et al.
patent: 3185868 (1965-05-01), Coyle et al.
patent: 3274537 (1966-09-01), Toulis
patent: 3302163 (1967-01-01), Andrews
patent: 3372370 (1968-03-01), Cyr
patent: 3375489 (1968-03-01), Kompanek
patent: 3515910 (1970-06-01), Fritz et al.
patent: 3699507 (1972-10-01), Massa
patent: 3925692 (1975-12-01), Leschek et al.

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