Underwater electroacoustic transducer construction

Details Underwater electroacoustic transducer construction Underwater electroacoustic transducer construction

1973-06-04

1976-08-10

Tudor, Harold

Communications: electrical

Selective

Interrogation response

340 8S, H04B 1300

Patent

active

039744744

ABSTRACT:
The electroacoustic transducer disclosed is of double mass loaded piezoelectrically driven type particularly adapted to high power sonar array application. For reducing transducer sensitivity to interference and noise of frequencies at and below the transducer moving assembly mounting resonance, without significant impairment of transducer efficiency even at high power levels in the active mode operating frequency bands, the transducer moving assembly mounting resonance is damped by provision of a resistive coupling which in its preferred form comprises a lossy rubber ring compressed between the transducer housing and the inertia mass. Corona suppression means effective at high power levels of operation as described also are disclosed.

REFERENCES:
patent: 2101893 (1937-12-01), Bokovoy et al.
patent: 2961637 (1960-11-01), Camp
patent: 3474403 (1969-10-01), Massa et al.
patent: 3539980 (1970-11-01), Massa, Jr.
patent: 3716827 (1973-02-01), Massa
patent: 3718898 (1973-02-01), Cook et al.

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