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:
Jan. 30, 2001
Filed:
Sep. 15, 1999
Applicant:
Inventors:
Eberhard Handrich, Kirchzarten, DE;
Manfred Kemmler, Vörstetten, DE;
Assignee:
LITEF GmbH, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 1/972 ;
U.S. Cl.
CPC ...
G01C 1/972 ;
Abstract
A method and a device for compensating Shupe effect drift errors in a fiber gyro that result from time-dependent temperature changes. A closed loop fiber optic gyro includes a VCO control loop and an evaluation unit that incorporates a model which is dependent on the optical path length of light through the fiber coil. The closed loop gyro is arranged to compensate for temperature-dependent drift changes that result from changes in optical path length.