Research/Patents/US 5274608
US 5274608

SONAR TRANSDUCER

Assignee

GENERAL DYNAMICS INFORMATION SYSTEMS, INC.

Filed

Nov 18, 1964

Granted

Dec 28, 1993

Location

3190 FAIRVIEW PARK DRIVE, FALLS CHURCH VIRGINIA 22042

Abstract

A sonar transducer includes an electro-mechanical transducer coupled to a front mass and a back mass. Annular rings space a compliant diaphragm from the front mass, the diaphragm being in communication with the liquid to which the sonar transducer is exposed. The compliance of the diaphragm is selected to tune the sonar transducer to eliminate reactive components of the impedance of the combined sonar transducer and liquid medium load, and to maximize the radiation resistance of the system.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Dec 18, 1981

Rescinded

Dec 1, 1992

Duration

10 years, 11 months

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records