Title :
A novel bulk-glass optical current transducer having an adjustable multi-ring optical path
Author :
Yi, B. ; Cruden, A. ; McDonald, J.R. ; Andonovic, I.
Author_Institution :
Centre for Electr. Power Eng., Strathclyde Univ., Glasgow, UK
Abstract :
This paper describes a new design of bulk type Faraday effect based optical current transducer. The sensing element is a four-piece bulk optic structure which enables the polarized light to circulate around the conductor a number of times and increases the sensitivity several times. The design makes for ease of manufacturing and alignment. The number of closed-optical paths can be changed easily by adjusting the incident point of light. The principle of the design is described and simulation and experimental results are presented
Keywords :
Faraday effect; electric current measurement; electro-optical devices; optical glass; transducers; Faraday effect; adjustable multi-ring optical path; bulk-glass optical current transducer; closed-optical paths; four-piece bulk optic structure; optical current transducer; polarized light; sensing element; sensitivity; simulation; Birefringence; Conducting materials; Conductors; Glass; Optical fiber polarization; Optical fibers; Optical materials; Optical polarization; Optical sensors; Transducers;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1997. IMTC/97. Proceedings. Sensing, Processing, Networking., IEEE
Conference_Location :
Ottawa, Ont.
Print_ISBN :
0-7803-3747-6
DOI :
10.1109/IMTC.1997.610235
