Method for self-correction of a fiber gyroscope with a 3.times.3-coupler

US5146292A · kind A · utility

Assignee

• Messerschmitt Bolkow Blohm GmbH · DE

Inventors

• Wolfhardt Buehler · Munich, DE
• Hans Poisel · Leinburg, DE
• Gert Trommer · Munich, DE

Key dates

• Filing date: Jun 8, 1990
• Grant date: Sep 8, 1992
• Expiry date: Jun 8, 2010

Classification

• Technology area (CPC G): Physics
• CPC primary: G01C19/725
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The damping of the fiber coil of a fiber gyroscope is automatically corrected or newly determined in a microprocessor by repeating a calculation program in which a previously known damping factor of the fiber coil is replaced by a more recently determined damping factor. The calculation program is repeated until the calculated damping factor converges toward a fixed value. In this way, changes in the damping factor, e.g. due to aging of the fiber coil, due to splicings in the fiber coil, are ascertained and automatically corrected.