Accession Number : ADD003577

Title :   Triangular Interferometric Light-Source Tracker.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Kelsall,Dennis

Report Date : 18 Jan 1977

Pagination or Media Count : 6

Abstract : A system is described for tracking the position of a light source by mounting two orthogonal triangular interferometric systems on a gimbaled platform. The interferometric systems each provide a carrier frequency signal depending upon their pointing angle with respect to the light source. These carrier signal frequencies provide the error signals for the X and Y axis drives of the platform. (Author)

Descriptors :   *Patents, *Light sources, *Interferometers, Interferometry, Position finding, Tracking, Triangles

Subject Categories : Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE