Title :
Vibration immunity for optical-fiber current measurement
Author :
Rogers, A.J. ; Xu, Jincheng ; Yao, Jialini
Author_Institution :
Dept. of Electron. & Electr. Eng., King´´s Coll., London, UK
fDate :
7/1/1995 12:00:00 AM
Abstract :
Optical-fiber measurement of electric current can be rendered immune from the effects of environmental vibration by utilizing the nonreciprocity of the Faraday effect in an arrangement which propagates light simultaneously in the two directions around a fiber loop enclosing an electric current. The system is compared with a back-reflection arrangement. Temperature variations are also suppressed
Keywords :
Faraday effect; electric current measurement; fibre optic sensors; optical fibre testing; optical fibres; reflectivity; vibrations; Faraday effect; back-reflection arrangement; electric current; electric current measurement; environmental vibration; fiber loop; light propagation; nonreciprocity; optical-fiber current measurement; temperature variation suppression; vibration immunity; Birefringence; Current measurement; Faraday effect; Magnetic field measurement; Optical fiber devices; Optical fiber polarization; Optical polarization; Optical sensors; Temperature; Vibration measurement;
Journal_Title :
Lightwave Technology, Journal of
