Patent · US Expired

Method for evaluating signals of a fiber optical gyroscope or Sagnac interferometer

US5080488A · kind A · utility

6Cited by

3References

10Claims

0Family size

Assignee

Messerschmitt Bolkow Blohm GmbH · DE

Inventors

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

Key dates

Filing date	Apr 10, 1990
Grant date	Jan 14, 1992
Priority date	—
Expiry date	Apr 10, 2010

Classification

Technology area (CPC G)Physics
CPC primaryG01C19/725
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method and system for evaluating signals from a fiber optical gyro employs a 3.times.3-coupler which makes it possible to ascertain a precise Sagnac-Signal in spite of the fact that the fluctuations of the optical characteristics of the fiber coil are unknown. Thus, a high precision is assured, while simultaneously reducing the quality requirments for the optical components of the system.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.