Accession Number : ADD010998

Title :   Resonator Insensitive to Paraxial Accelerations.

Descriptive Note : Patent Application,


Personal Author(s) : Nakazawa,M ; Ballato,A

Report Date : 19 Apr 1984

Pagination or Media Count : 10

Abstract : This document describes a ring-supported quartz crystal resonator having a circular peripheral 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. (Author)

Descriptors :   *Patent applications, *Quartz resonators, *Piezoelectric effect, Crystals, Configurations, Surfaces, Thickness, Radius(Measure), Resistance, Shock, Vibration

Subject Categories : Electrical and Electronic Equipment
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE