Communications – electrical: acoustic wave systems and devices – Signal transducers – Underwater type
Patent
1976-04-26
1983-11-01
Tudor, Harold J.
Communications, electrical: acoustic wave systems and devices
Signal transducers
Underwater type
310334, 310335, 310337, 310327, 367155, 367162, H04B 1300
Patent
active
044133316
ABSTRACT:
A transducer made up of a plurality of piezoceramic tubes arranged in end to end relationship with elastomeric material between tubes. The tubes are poled and driven axially; however, the hoop mode of operation is utilized to obtain a fan-shaped beam extremely narrow in one direction and extremely broad in the direction perpendicular thereto. A suitable backing arrangement is provided for the transducer when mounted on a support body to prevent degradation of the beam pattern.
REFERENCES:
patent: 2753543 (1956-07-01), Rymes
patent: 2923916 (1960-02-01), Woodworth
patent: 3067345 (1962-12-01), Harris
patent: 3144090 (1964-08-01), Mazzagatti et al.
patent: 3182284 (1965-05-01), Green
patent: 3351901 (1967-11-01), Padberg, Jr.
patent: 3409869 (1968-11-01), McCool et al.
patent: 3713086 (1973-01-01), Trott
patent: 3922572 (1975-11-01), Cook
patent: 3992693 (1976-11-01), Martin et al.
Rowe, Jr. Linwood M.
Skinner Dale D.
Thompson John H.
Schron D.
Tudor Harold J.
Westinghouse Electric Corp.
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