Accession Number : ADD017765

Title :   Electronic Phase-Tracking Open-Loop Fiber Optic Gyroscope.

Descriptive Note : Patent, Filed 31 Aug 92, patented 1 Aug 95,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Kersey, Alan D

Report Date : 01 Aug 1995

Pagination or Media Count : 12

Abstract : A simplified signal processing technique for the open-loop fiber optic gyroscope is described which is based on the electronic closed-loop phase-shift nulling' concept. The system provides a linear output from an open-loop gyroscope configuration over a i2 pi radian range in Sagnac phase shift with good linearity and relatively low noise and drift. An alternative embodiment is disclosed utilizing, for example, a Mach-Zehnder interferometer for mixing the signals.

Descriptors :   *FIBER OPTICS, *GYROSCOPES, *PATENTS, SIGNAL PROCESSING, LINEAR SYSTEMS, OUTPUT, DRIFT, CONFIGURATIONS, LOOPS, SIMPLIFICATION, LOW NOISE, PHASE SHIFT

Subject Categories : Fiber Optics and Integrated Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE