Balanced transducer

Details Balanced transducer Balanced transducer

1975-02-03

1978-12-12

Tudor, Harold J.

Communications: electrical

Selective

Interrogation response

340 8PC, 340 8MM, H04B 1300

Patent

active

041298500

ABSTRACT:
A balanced sonar transducer comprising a front radiating mass and a rear mass coupled thereto via a ceramic transducer element which imparts vibrational motion to the front and the rear masses. The front and the rear masses are secured to a bulkhead via a tie rod which passes through the rear mass and the transducer element and is secured in the front mass. A disc spring is placed between the bulkhead and the rear mass and has a compliance of a suitable magnitude to resonate with the rear mass at a frequency which approximates the resonant frequency of the front mass with the compliance of the tie rod. The approximate matching of the resonant frequencies provides for a balancing of the stresses applied to the transducer element which insulates the transducer element from a vibrational acceleration imparted to the transducer assembly by vibrations of the ship and of the bulkhead to which the transducer assembly is affixed.

REFERENCES:
patent: 3284761 (1966-10-01), Douglas
patent: 3550071 (1970-12-01), Schlemm et al.
patent: 3593257 (1968-06-01), Massa, Jr.
patent: 3665381 (1972-05-01), Bauer

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