Resonator insensitive to paraxial accelerations

Details Resonator insensitive to paraxial accelerations Resonator insensitive to paraxial accelerations

1984-04-06

1988-01-19

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310335, 310367, H01L 4108

Patent

active

047206519

ABSTRACT:
A ring-supported quartz crystal resonator having a circular peripheral surt region encircling an inner resonator region which is configured in the form of a domed arch wherein the top and bottom surfaces thereof are, respectively, convex and concave. In one embodiment the radius of curvature of the convex and concave top and bottom surfaces are substantially equal so that an arch of substantially uniform thickness is provided. In a second embodiment, the convex and concave top and bottom surfaces have different radii of curvature and, more particularly, the radius of curvature of the top surface is less than the radius of curvature of the bottom surfaces whereby a thickness of the inner region gradually increases uniformly toward the center. Such structures exhibit low resistance and improved mode spectrum.

REFERENCES:
patent: 3694677 (1972-09-01), Guttwein
patent: 3968680 (1976-07-01), Uopilkin et al.
patent: 4097835 (1978-06-01), Green
patent: 4135108 (1979-01-01), Besson
patent: 4184094 (1980-01-01), Kopel
patent: 4317059 (1982-02-01), Besson

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