Title :
A novel bulk-glass optical current transducer having an adjustable multiring closed-optical-path
Author :
Yi, Benshun ; Cruden, Andrew ; Madden, Iain ; Mcdonald, James R ; Andonovic, Ivan
Author_Institution :
Centre for Electr. Power Eng., Strathclyde Univ., Glasgow, UK
fDate :
2/1/1998 12:00:00 AM
Abstract :
This paper describes a new design of a 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 the simulation and experimental results are presented
Keywords :
Faraday effect; electric current measurement; magneto-optical sensors; optical glass; optical prisms; Faraday effect-based transducer; Jones calculus; adjustable multiring closed-optical-path; bulk-glass optical current transducer; flint glass; four-piece bulk optic structure; incident point of light adjustment; increased sensitivity; linear birefringence response; magneto-optic transducer; multiple ring; rectangular prisms; simulation; Birefringence; Conducting materials; Conductors; Glass; Magnetic materials; Optical fiber polarization; Optical fibers; Optical materials; Optical sensors; Transducers;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
