Stress compensated piezoelectric crystal device

Details Stress compensated piezoelectric crystal device Stress compensated piezoelectric crystal device

1985-01-10

1986-12-23

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310361, 310348, 310346, H01L 4108

Patent

active

046314377

ABSTRACT:
A stress compensated quartz piezoelectric resonator disk. The resonator contains a thin resonant center disk and a thicker integral concentric peripheral support ring. Roughly pie-slice portions of the inner disk are cut away. The remaining bridges between the resonant disk and support ring are positioned and sized in accord with crystallographic theory so that forces applied to the support ring will not change the resonant frequency of the disk.

REFERENCES:
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patent: 3339091 (1967-08-01), Hammond et al.
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patent: 4135108 (1979-01-01), Besson
patent: 4221986 (1980-09-01), Besson
patent: 4357554 (1982-11-01), Peters
patent: 4454443 (1984-06-01), Lukaszek et al.
patent: 4464598 (1984-08-01), Besson
Force-Frequency Effect in Doubly Rotated Quartz Resonators, by Ballato et ., ECOM 4536, 9/77.

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