JIEIE - Journal of the Korean Institute of Illuminating and Electrical Installation Engineers

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Journal of the Korean Institute of Illuminating and Electrical Installation Engineers

ISO Journal TitleJ Korean Inst. IIIum. Electr. Install. Eng.

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Title	Distributed Fiber-Optic Temperature Sensor Network for Protection of Electric Power Systems
Authors	Hyung-Joon Park; June-Ho Lee ; Min-Ho Song
Page	pp.64-71
ISSN	1225-1135
Keywords	Fiber-optic temperature sensor ; Fiber Bragg grating ; Fabry-Perot filter
Abstract	We developed a fiber-optic temperature sensor system, with 10 fiber Bragg gratings, for abnormal high-temperature monitoring in power systems. We used Gaussian line-fitting algorithm to compensate the spectrum distortion in the wavelength-scanned Farby-Perot filter demodulation scheme. Compared with highest-peak-detection method, the proposed algorithm substantially reduced measurement errors. The overall measurement error was less than 1[%] compared with the reference thermocouple and the linearity error was 0.37[%].

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