Communications – electrical: acoustic wave systems and devices – Signal transducers – Underwater type
Patent
1990-09-19
1991-11-26
Kyle, Deborah L.
Communications, electrical: acoustic wave systems and devices
Signal transducers
Underwater type
367162, 367163, 367166, 367171, 367176, 181182, 310337, H04R 1700
Patent
active
050688367
ABSTRACT:
A flextensional sonar transducer comprising a first cavity defined by an elliptical shell and end plates covering the two ends of the shell, vibration drive means inside the cavity and coupled between portions of the shell wall at opposite ends of the major axis of the shell, a further cavity connected to the first cavity and an opening between the two cavities for coupling the two cavities for the further cavity to affect the resonant frequency of the first.
REFERENCES:
patent: 4413198 (1983-11-01), Bost
patent: 4549631 (1985-10-01), Bose
patent: 4628528 (1986-12-01), Bose et al.
British Aerospace Public Limited Company
Eldred J. Woodrow
Kyle Deborah L.
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