Paper
26 November 2007 FBG sensor network in Qinghai-Tibet railway monitoring system
Wentao Zhang, Jingyun Dai, Baochen Sun, Yanliang Du
Author Affiliations +
Abstract
A fiber Bragg grating (FBG) sensors network in the roadbed temperature monitoring system in Qinghai-Tibet railway is presented. This sensor network is composed of FBG sensor chains embedded in the roadbed, slave optical cables, work stations which include the FBG sensor interrogator and the optical router, master optical cables, and center workstation. We give the primary experimental results of this sensor network in monitoring the roadbed temperature of the railway at DK0985+000 near Chumar River. The temperature data was collected after a month when the temperature field in the monitoring hole became stable. This experiment had been carried out for more than one year. The FBG sensor network has successfully measured the temperature in the roadbed with an accuracy of 0.1 centigrade. Furthermore, the experimental result shows the stability and reliability of the FBG sensor network in the harsh environment of Qinghai-Tibet plateau. The prospect of the FBG sensor network in monitoring other parameters in the Qinghai-Tibet plateau is also presented.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Wentao Zhang, Jingyun Dai, Baochen Sun, and Yanliang Du "FBG sensor network in Qinghai-Tibet railway monitoring system", Proc. SPIE 6830, Advanced Sensor Systems and Applications III, 68301P (26 November 2007); https://doi.org/10.1117/12.757277
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CITATIONS
Cited by 3 scholarly publications.
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KEYWORDS
Fiber Bragg gratings

Sensor networks

Sensors

Temperature metrology

Optical fiber cables

Temperature sensors

Environmental sensing

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