Title :
Fibre-optic gyro for sensitive measurement of rotation
Author :
Böhm, K. ; Marten, P. ; Petermann, K. ; Weidel, E.
Author_Institution :
AEG-Telefunken Kommunikationstechnik AG, Forschungsinstitut Ulm, Ulm, West Germany
fDate :
3/1/1983 12:00:00 AM
Abstract :
A sensor is described which allows the detection of rotation with respect to an inertial frame. The sensor is based on the Sagnac effect, which is measured with a fibre-optic ring interferometer. The fibre gyro is characterized by the following features: a phase modulation scheme to obtain a high sensitivity; a single-mode filter to achieve low drift; depolarized light in order to get a constant scale factor; light with short coherence length to avoid noise due to backscattering.
Keywords :
fibre optics; gyroscopes; light interferometers; nonelectric sensing devices; rotation; Sagnac effect; backscattering; constant scale factor; depolarized light; fibre gyro; fibre-optic ring interferometer; inertial frame; noise; phase modulation scheme; rotation; sensitive measurement; sensor; short coherence length; single-mode filter;
Journal_Title :
Radio and Electronic Engineer
DOI :
10.1049/ree.1983.0026
