Sonar beam shaping with an acoustic baffle

Details Sonar beam shaping with an acoustic baffle Sonar beam shaping with an acoustic baffle

1977-03-15

1993-09-07

Tudor, Harold J.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

181293, 310326, 367153, 367162, 367905, H04R 2300

Patent

active

052435679

ABSTRACT:
A side-looking sonar transducer which has sound absorbing material extending forwardly of the active surface of the transducer elements to diminish the acoustic response over a predetermined zone for reducing the effect of erroneous reflection signals. The surface of the sound absorbing material has a series of sharp peaks and valleys.

REFERENCES:
patent: 2984313 (1961-05-01), Gambill
patent: 2994400 (1961-08-01), Heller
patent: 3103255 (1963-09-01), Boschi et al.
patent: 3359537 (1967-12-01), Geil et al.
patent: 3718898 (1973-02-01), Cook et al.
patent: 3949348 (1976-04-01), Dorr

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