Method for reducing the resonant frequency of a piezoelectric tr

Details Method for reducing the resonant frequency of a piezoelectric tr Method for reducing the resonant frequency of a piezoelectric tr

1977-08-18

1979-05-22

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

29 2535, 179110A, 310324, H01R 4110

Patent

active

041561562

ABSTRACT:
The resonant frequency of a conventional piezoelectric transducer having predetermined dimensions and a fundamental nodal diameter is reduced while maintaining the overall predetermined diameter and fundamental nodal diameter of the transducer. A method of reducing the resonant frequency of a conventional piezoelectric transducer includes the step of radially slotting the substrate of the transducer.

REFERENCES:
patent: 1040294 (1912-10-01), Ellis et al.
patent: 1990409 (1935-02-01), Lawrance
patent: 1997790 (1935-04-01), Heidrich
patent: 2487962 (1949-11-01), Arndt, Jr.
patent: 2870521 (1959-01-01), Rudnick
patent: 3815129 (1974-06-01), Sweany
patent: 3943338 (1976-03-01), Massa

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