Sonar apparatus

Details Sonar apparatus Sonar apparatus

1970-10-15

1976-04-06

Feinberg, Samuel

Communications: electrical

Selective

Having indication or alarm

310 82, 310 91, H04B 1300

Patent

active

039493482

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.

REFERENCES:
patent: 2741754 (1956-04-01), Miller
patent: 2797399 (1957-06-01), Camp et al.
patent: 2972068 (1961-02-01), Howry et al.
patent: 3113287 (1963-12-01), Renner
patent: 3359537 (1967-12-01), Geil et al.

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