Progress of optical sensor system for health monitoring of bridges at Chongqing University

W. Chen; Y. Fu; Y. Zhu; S. Huang

doi:10.1117/12.579927

14 February 2005 Progress of optical sensor system for health monitoring of bridges at Chongqing University

W. Chen, Y. Fu, Y. Zhu, S. Huang

Proceedings Volume 5634, Advanced Sensor Systems and Applications II; (2005) https://doi.org/10.1117/12.579927
Event: Photonics Asia, 2004, Beijing, China

Abstract

With decades of research experience on optical sensors, Optoelectronic Technology Lab of Chongqing University (OTLCU) has studied on a variety of sensors system designed for practical use in health monitoring. In OTLCU, embedded and surface mounted fiber Fabry-Perot strain sensor has been developed for monitoring the local strain of both concrete and steel truss bridge. Optoelectronic deflect meter, with a group of optical level sensor in a series connected pipe, was developed for deflection monitoring and line shape monitoring of the bridges. Laser deflect meter, with a laser pointer and a sensors array, has been also developed for a dynamic deflection monitoring of the bridges. To monitoring the 2-Dimentional displacement of the bridge, a self-calibrating imaging system was developed. All these sensor systems have been applied in different bridges successfully. This paper briefly describes principle of these optical sensing systems, and also gives some representative results of the system in practical application of bridges.

Citation Download Citation

W. Chen, Y. Fu, Y. Zhu, and S. Huang "Progress of optical sensor system for health monitoring of bridges at Chongqing University", Proc. SPIE 5634, Advanced Sensor Systems and Applications II, (14 February 2005); https://doi.org/10.1117/12.579927

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