The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 18, 1989
Filed:
May. 22, 1987
Damon H Duncan, Phoenix, AZ (US);
Randy P Goettsche, Phoenix, AZ (US);
Honeywell, Inc., Minneapolis, MN (US);
Abstract
A two-degree of freedom, open loop, spring restrained rate gyro apparatus includes a motor mounted in a housing with a conductive device provided for conducting operating voltages into and out of the housing. A shaft is rotatably mounted in the housing and is connected to be driven by the motor. A ring, having a hub, is connected to the shaft. The ring and hub are interconnected by a torsion bar. A stop is connected to the shaft adjacent the ring so as to define an air gap between the ring and the stop. A pair of variable reluctance pickoffs are mounted in the housing adjacent the ring. The pickoffs also define an air gap between each of the pickoffs and the ring. An optical pickoff is also mounted adjacent the ring. A signal processor is connected to the pair of variable reluctance pickoffs and to the optical pickoff for measuring the rate of the gyro.