Accession Number : AD0764706

Title :   Friction Effects on Inertia Compensators used for Heliostat Base Motion Isolation.

Descriptive Note : Scientific rept.,

Corporate Author : FRANK J SEILER RESEARCH LAB UNITED STATES AIR FORCE ACADEMY COLO

Personal Author(s) : Comfort,Gary C.

Report Date : JUN 1973

Pagination or Media Count : 11

Abstract : The base motion isolation of an optical beam deflector with a two-axis gimbal support (heliostat) is discussed. The use of an auxiliary inertia coupled between the elevation gimbal and the heliostat mirror to produce a compensating torque referred to as a gear compensator and a belt compensator are presented. The direction isolation from base motion are determined. The effect of coulomb friction on the compensator action of a gear compensator is evaluated. Such friction-produced pointing error is shown to be reduced by the use of a combined inertia compensator utilizing both the belt and gear compensators simultaneously. (Author)

Descriptors :   (*OPTICAL TRACKING, CONTROL SYSTEMS), GIMBALS, MIRRORS, GYRO STABILIZERS, EQUATIONS OF MOTION, FRICTION, STABILIZED PLATFORMS

Subject Categories : Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE