Multiple beam lens transducer with collimator for sonar systems

Details Multiple beam lens transducer with collimator for sonar systems Multiple beam lens transducer with collimator for sonar systems

1985-03-08

1985-11-05

Tudor, Harold J.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

310335, 367153, H04B 1300

Patent

active

045518262

ABSTRACT:
A compact apparatus for transmitting and receiving multiple sonar beams utilizes an acoustic lens to direct plane waves incident in desired directions to collimating lenses for presentation in phase to electroacoustic transducers having planar surfaces. The electroacoustic transducers emit sound waves which are transformed by the lenses into plane waves emergent in the desired directions.

REFERENCES:
patent: 2906993 (1959-07-01), Steinberger
patent: 3979565 (1976-09-01), McShane
patent: 4001766 (1977-01-01), Hurwitz
patent: 4296482 (1981-10-01), Kritz
patent: 4385255 (1983-05-01), Yamaguchi et al.
patent: 4440025 (1984-04-01), Hayakawa et al.
The Effects of Backing and Matching on the Performance of Piezoelectric Ceramic Transducers, by George Kossoff, IEEE on Sonic and Ultrasonic vol. Su-13, No. 1, 3/66, pp. 20-31.
"Doppler Sonar Velocity Log for Attack Submarines", by Wapner et al., IEEE, Position, Location and Navigation Symposium, Atlantic City, N.J., Dec. 8-11, 1980.

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