Communications – electrical: acoustic wave systems and devices – Signal transducers – Underwater type
Patent
1987-08-05
1989-03-21
Kyle, Deborah L.
Communications, electrical: acoustic wave systems and devices
Signal transducers
Underwater type
367104, 367120, 367165, H04R 100
Patent
active
048150487
ABSTRACT:
A dual axis transducer assembly comprises a transducer (20), a yoke (24) which mounts the transducer for oscillating movement about a substantially horizontal axis. A turntable (28) mounts the yoke and hence the transducer for oscillating motion about a vertical axis. Separate motors (10) and (12) supply motion to the transducer and control means (84), (86), (88) are employed to control the operation of the motors.
REFERENCES:
patent: 2865014 (1958-12-01), Malm
patent: 3553638 (1971-01-01), Sublett
patent: 3752255 (1973-08-01), Hill et al.
David M. Quarders, "Method of Using Searchlight Sonar", by Furuno Electric Company LTD of Japan.
Boucher Stephen G.
Lins Christopher S.
Simoneau Michael J.
AirmarTechnology Corporation
Eldred John W.
Kyle Deborah L.
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