Structural deformation monitoring based on distributed fiber optic sensors

Ying Mei; Xiaojun Yang; Rui Du; Yisong Zhang; Ruiyan Li; Xuechao Tian

doi:10.1117/12.3023848

18 March 2024 Structural deformation monitoring based on distributed fiber optic sensors

Ying Mei, Xiaojun Yang, Rui Du, Yisong Zhang, Ruiyan Li, Xuechao Tian

Proceedings Volume 13104, Advanced Fiber Laser Conference (AFL2023); 131046Q (2024) https://doi.org/10.1117/12.3023848
Event: Advanced Fiber Laser Conference (AFL2023), 2023, Shenzhen, China

Abstract

Real-time health monitoring of engineering structures is crucial for improving structural safety, extending the lifespan of structures, and reducing maintenance costs. In this paper, based on the strain monitoring data from distributed fiber optic sensors, a deformation reconstruction algorithm is established to obtain structural deformation information from strain measurements. An experimental test is conducted on a reinforced concrete plate subjected to explosive loads. Distributed fiber optic strain sensors are embedded in the upper and lower surfaces of the plate, and the deformation of the concrete plate under different blast conditions is evaluated by varying the explosive yield. The comparison between the reconstructed deformation results and the actual state of the structure (obtained through high-precision laser scanning) shows that the error of the structural deformation monitoring system based on fiber optic sensors is less than 3mm.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Ying Mei, Xiaojun Yang, Rui Du, Yisong Zhang, Ruiyan Li, and Xuechao Tian "Structural deformation monitoring based on distributed fiber optic sensors", Proc. SPIE 13104, Advanced Fiber Laser Conference (AFL2023), 131046Q (18 March 2024); https://doi.org/10.1117/12.3023848

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