Unidirectional flexure type tuning fork crystal vibrator

Details Unidirectional flexure type tuning fork crystal vibrator Unidirectional flexure type tuning fork crystal vibrator

1982-02-09

1984-08-28

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310366, H01L 4108

Patent

active

044685840

ABSTRACT:
In a flexure crystal, flexural vibration will occur when a unidirectional electric field is applied thereto in a manner that strength of the electric field varies from point to point. For the fork type of crystal vibrator, each of branches is provided with electrodes at the top wall, the bottom wall and the outer side wall for application of the strength-variable unidirectional electric field.

REFERENCES:
patent: 1899503 (1933-02-01), Hansell
patent: 3488530 (1970-01-01), Staudte
patent: 3944862 (1976-03-01), Shimoi et al.
patent: 3969641 (1976-07-01), Oguchi et al.
patent: 4126802 (1978-11-01), Hermann

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