Resonator for a thermostatically-controlled oscillator having lo

Details Resonator for a thermostatically-controlled oscillator having lo Resonator for a thermostatically-controlled oscillator having lo

1993-03-16

1994-02-22

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310343, 310369, H01L 4108

Patent

active

052890759

ABSTRACT:
The present invention relates to a piezoelectric resonator having adherent or non-adherent electrodes, the piezoelectric crystal comprising a central portion and a peripheral portion forming a ring that surrounds the central portion and that is connected thereto by an intermediate portion in which a slot is formed, the peripheral portion being connected to the central portion by a single connection bridge constituted by a non-slotted portion of said intermediate portion that extends over a small fraction of the periphery of said intermediate portion. The central portion constitutes the active vibrating portion of the crystal and the peripheral portion is held in the box by fastening means disposed in such a manner as to be thermally as remote as possible from the single connection bridge. The secured portion and the bridge constitute means for suspending the crystal.

REFERENCES:
patent: 3431392 (1969-03-01), Garland et al.
patent: 3634787 (1972-01-01), Newell
patent: 4091303 (1978-05-01), Takataka et al.
patent: 4221986 (1980-09-01), Besson
patent: 4334168 (1982-06-01), Besson et al.

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