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http://dx.doi.org/10.4313/JKEM.2009.22.3.218

Monitoring of Temperature and Strain Variation with FBG Sensors  

Ko, Ki-Han (한밭대학교 전기공학과)
Park, Young (한국철도기술연구원 집전전력연구실)
Cho, Yong-Hyeon (한국철도기술연구원 집전전력연구실)
Jung, Ho-Sung (한국철도기술연구원 집전전력연구실)
Cho, Yong-Suk (건양대학교 전자정보공학과)
Choi, Won-Seok (한밭대학교 전기공학과)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.22, no.3, 2009 , pp. 218-221 More about this Journal
Abstract
This paper reports on measurement method for the fiber optic strain monitoring of overhead contact line systems of trains, We used FBG (Fiber Bragg Grating) sensors to measure the strain variation of overhead contact line. FBG sensors can sensitively measure the variation of strain and! or temperature by the shift wavelength of reflected wave according to the lattice variation during the measurement. FBG sensor were attached on the contact line and connected to the monitoring system with optical fibers. The monitering system with FBG sensors showed very good sensitivity to measuring strain variation and this system could be applied to the overhead contact line of KTX (Korea Train eXpress).
Keywords
FBG (Fiber bragg grating); Contact line; Strain; Sensor; Monitoring;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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