Research/Patents/US 5515342
US 5515342Tier 3 — General Defense

DUAL FREQUENCY SONAR TRANSDUCER ASSEMBLY

Assignee

General Electric

Filed as: GENERAL ELECTRIC COMPANY, A CORP. OF N.Y.

Filed

Jul 10, 1989

Granted

May 7, 1996

Location

JAMESVILLE NY US

Abstract

The invention relates to a dual frequency sonar transducer assembly which may be operated at low and/or high frequencies in a sonar array. The assembly comprises a low frequency unit of tonpilz design including a low frequency driver, a low frequency tail mass and a composite head mass, the composite head mass acting as a single low frequency water driving piston and comprising a plurality of high frequency units forming individual high frequency water driving pistons. The high frequency units are also of tonpilz design, with independent drivers, independent head masses, and a common tail mass. The use of a common tail mass simplifies the design without compromising high frequency operation. The design leads to more efficient operation at both frequencies by minimizing the head mass to tail mass ratios.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Nov 14, 1989

Rescinded

Nov 7, 1995

Duration

5 years, 11 months

Inventor

  • 1CLEO M. STEARNS

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