7 November 2012 Field trials of fiber Bragg grating settlement sensors in high-speed railways
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Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 8421BL (2012) https://doi.org/10.1117/12.975243
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China
Abstract
Novel fiber Bragg gratings (FBG) based settlement sensors are developed and the sensing performance is evaluated in both the lab and field environments. The settlement is determined by precisely measuring the pressure of the water level difference. The experimental results indicated that the sensor has good linearity, good repeatability and high accuracy in the settlement measurements. The influence of temperature fluctuations on the sensor's performance is eliminated and long-term test results proved the good stability of better than ±0.1% of the sensor. Such a FBG sensing system has been applied to monitor the settlement of high-speed railways in practice.
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Xianglin Lu, Xianglin Lu, Yuan Gong, Yuan Gong, Xiangliang Zheng, Xiangliang Zheng, Lei Du, Lei Du, Yu Wu, Yu Wu, Dengyong Li, Dengyong Li, Li Liu, Li Liu, Yao Yao, Yao Yao, Song Xiao, Song Xiao, Zhong Deng, Zhong Deng, Yunjiang Rao, Yunjiang Rao, } "Field trials of fiber Bragg grating settlement sensors in high-speed railways", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 8421BL (7 November 2012); doi: 10.1117/12.975243; https://doi.org/10.1117/12.975243
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