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Fiber Sensors for Strain Measurements and Axle Counting in High-Speed Railway Applications

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9 Author(s)
Lianshan Yan ; Center for Inf. Photonics & Commun., Southwest Jiaotong Univer sity, Chengdu, China ; Zhaoting Zhang ; Ping Wang ; Wei Pan
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High-speed railway systems have begun to be widely deployed. To meet increasingly stringent requirements under harsh running environments, we propose and demonstrate three fiber-Bragg-grating (FBG)-based approaches for the strain measurement and axle counting in high-speed railway systems, including matched gratings, grating under uneven strain distribution, and semi-free grating. All approaches are laboratory verified and evaluated using the train load platform. Pros and cons are also discussed in terms of feasibility and cost-effectiveness.

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Sensors Journal, IEEE  (Volume:11 ,  Issue: 7 )