Development and Application of Fiber Bragg Grating Clinometer

2nd International Conference on Materials Engineering and Nanotechnology

材料科学;物理学

Guo, Xin^1 ; Li, Wen^1 ; Wang, Wentao^1 ; Feng, Xiaoyu^1

Changsha University of Science and Technology, Institute of Transportation Engineering, Hunan, China^1

关键词: Development and applications;    Fiber gratings;    Operating well;    Poor stability;    Safety analysis;    Safety monitoring;    Wavelength change;    Wireless transmission devices;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/205/1/012033/pdf
DOI  :  10.1088/1757-899X/205/1/012033

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Using FBG (fiber bragg grating) technology in clinometers can solve the technological problem facing by wireless transmission devices like big data transfer volume and poor stability, which has been receiving more and more attention. This paper discusses a new clinometer that is designed and transformed based on upgrading current clinometers, installing fiber grating strain gauges and fiber thermometers, and carrying out studies on such aspects as equipment upgrading, on-site setting, and data acquisition and analysis. In addition, it brings up the method of calculating displacement change based on wavelength change; this method is used in safety monitoring of the right side slope of Longyong Expressway ZK56+860 ∼ ZK56+940 Section. Data shows that the device is operating well with a higher accuracy, and the slope is currently in a steady state. The equipment improvement and the method together provide reference data for safety analysis of the side slope.