Electromechanical resonator apparatus

Details Electromechanical resonator apparatus Electromechanical resonator apparatus

1983-11-21

1985-11-12

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310321, 310368, H01L 4108

Patent

active

045530602

ABSTRACT:
A torsional-mode resonator is produced by using an extensional mode transducer on a piece of material such as a metal bar where the transducer lies at an angle between the longitudinal axis of the material and the transverse axis. Placing the midpoint of the transducer at approximately the midpoint of the material such as the bar, optimizes the torsional effect. Further optimization may be obtained by making the transducer in the shape of a rhomboid.

REFERENCES:
patent: 2478223 (1949-08-01), Argabrite
patent: 3859546 (1975-01-01), Doi et al.

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