Applications of fiber optic sensors in concrete structural health monitoring

Jingyun Dai; Wentao Zhang; Baochen Sun; Yanliang Du

doi:10.1117/12.757319

26 November 2007 Applications of fiber optic sensors in concrete structural health monitoring

Jingyun Dai, Wentao Zhang, Baochen Sun, Yanliang Du

Proceedings Volume 6830, Advanced Sensor Systems and Applications III; 68301Q (2007) https://doi.org/10.1117/12.757319
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

The research of fiber optic extrinsic Fabry-Perot interferometer (EFPI) sensors and their applications in concrete structural health monitoring are presented in this paper. Different types of fiber optic EFPI sensors are designed and fabricated. Experiments are carried out to test the performance of the sensors. The results show that the sensors have good linearity and stability. The applications of the fiber optic EFPI sensors in concrete structural health monitoring are also introduced. Ten fiber optic sensors are embedded into one section of the Liaohe Bridge in Qinghuangdao-Shenyang Railway. Field test demonstrates that the results of fiber optic sensors agree well with conventional strain gauges.

Citation Download Citation

Jingyun Dai, Wentao Zhang, Baochen Sun, and Yanliang Du "Applications of fiber optic sensors in concrete structural health monitoring", Proc. SPIE 6830, Advanced Sensor Systems and Applications III, 68301Q (26 November 2007); https://doi.org/10.1117/12.757319

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