Optical fiber based sensing system design for the health monitoring of multi-layered pavement structure

Wanqiu Liu; Huaping Wang; Zhi Zhou; Shiyu Li; Yuanbao Ni; Geng Wang

doi:10.1117/12.904779

22 November 2011 Optical fiber based sensing system design for the health monitoring of multi-layered pavement structure

Wanqiu Liu, Huaping Wang, Zhi Zhou, Shiyu Li, Yuanbao Ni, Geng Wang

Author Affiliations +

Proceedings Volume 8199, 2011 International Conference on Optical Instruments and Technology: Optical Sensors and Applications; 81990K (2011) https://doi.org/10.1117/12.904779
Event: International Conference on Optical Instruments and Technology (OIT2011), 2011, Beijing, Beijing, China

Abstract

This paper introduces an optical fiber based sensing system design for multi-layered pavement structural health monitoring. The co-line and integration design of FBG (Fiber Bragg Gating) sensors and BOTDR (Brillouin Optical Time Domain Reflectometry) sensors will ensure the large scale damage monitoring and local high accurate strain measurement. The function of pavement structure multi-scale shape measurement will provide real time subgrade settlement and rutting information. The sensor packaging methodology and strain transfer problem of the system will also be discussed in this paper. Primary lab tests prove the potential and feasibility of the practical application of the sensing system.

Citation Download Citation

Wanqiu Liu, Huaping Wang, Zhi Zhou, Shiyu Li, Yuanbao Ni, and Geng Wang "Optical fiber based sensing system design for the health monitoring of multi-layered pavement structure", Proc. SPIE 8199, 2011 International Conference on Optical Instruments and Technology: Optical Sensors and Applications, 81990K (22 November 2011); https://doi.org/10.1117/12.904779

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