Title :
A special spun birefringent fiber optic current sensor
Author :
Peng Nai ; Wang Shuangbao ; Liu Wen ; Wen Tao
Author_Institution :
Sch. of Opt. & Electron. Inf., HUST, Wuhan, China
Abstract :
A special spun linear birefringent fiber was designed and achieved for the fiber optic current sensor (FOCS) based on polarization-rotated reflection interferometers. In contrast with conventional sensing fibers used in FOCS the fiber integrates a function of a quarter wave plate. A fiber optic current sensor based on the spun fiber was constructed, and its performance was tested. The sensor output has a good linearity performance in a wide range of current. (10 to 5000Arms). The ratio error is within ±0.1% and the phase error is within ±2 min at a rated AC current of 1000Arms. The sensor could be used for current measuring in the electric power industry and the electrowinning industry.
Keywords :
Faraday effect; birefringence; fibre optic sensors; interferometers; magneto-optical sensors; FOCS; electric power industry; electrowinning industry; fiber optic current sensor; phase error; polarization-rotated reflection interferometers; quarter wave plate; ratio error; special spun linear birefringent fiber; Optical fiber couplers; Optical fiber polarization; Optical fiber sensors; Optical fiber testing; Optical fiber theory; Current sensor; Faraday Effect; spun fiber;
Conference_Titel :
Optical Communications and Networks (ICOCN), 2013 12th International Conference on
Conference_Location :
Chengdu
DOI :
10.1109/ICOCN.2013.6617195
