Machine element or mechanism – Gyroscopes – Gyroscope control
Patent
1987-09-30
1989-05-02
Bonck, Rodney H.
Machine element or mechanism
Gyroscopes
Gyroscope control
G01C 1922
Patent
active
048257133
ABSTRACT:
A two axis, monolithic suspension assembly for a gyroscope using cross flexure pivots and having an integral driving element which is rotatable about an axis of rotation, wherein the driving element is connected to a driven element by a suspension means, which comprises an upper gimbal, an intermediate gimbal and a lower gimbal. The lower gimbal is fixedly connected to the driving element and the upper gimbal is fixedly connected to the driven element. Each of the upper gimbal and lower gimbal have two cross flexure pivots, which connect to the intermediate gimbal. The cross flexure pivot consists of two diagonal flexure strips which represent an increase in the radial stiffness and a reduction in the radial compliance, from those required in prior art devices. A method for fabricating such a suspension in one piece without the need for any flexure strip separating operations, wherein the integral cross flexure pivots are provided by forming pairs of adjacent bores in a blank and wherein the upper gimbal, intermediate gimbal and lower gimbal are formed by traveling wire electrical discharge machine techniques. Errors which would arise due to changes in both the angular compliance and location of the pivot axes are minimized by proper selection of the cross flexure pivot geometry.
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patent: 4665605 (1987-05-01), Kempas
Bonck Rodney H.
Honeywell Inc.
Terry Howard Paul
LandOfFree
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