Design and Investigation of a High-Sensitivity Tilt Sensor Based on FBG

作     者：Jianjun PAN Liangying WANG Wei HOU Hanyang Lv Jianjun PAN;Liangying WANG;Wei HOU;Hanyang LV

作者机构：National Engineering Research Center of Fiber Optic Sensing Technology and NetworksWuhan University of TechnologyWuhan 430070China School of Mechanical and Electronic EngineeringWuhan University of TechnologyWuhan 430070China School of Information EngineeringWuhan University of TechnologyWuhan 430070China 

出 版 物：《Photonic Sensors》 (光子传感器（英文版）)

年 卷 期：2023年第13卷第2期

页      面：45-55页

核心收录：

学科分类：080202[工学-机械电子工程] 08[工学] 0802[工学-机械工程] 

基　　金：supported by the Fundamental Research Funds for the Central Universities(Grant No.2019 Ⅲ 158CG) the National Natural Science Foundation of China(Grant No.61875155) 

主　　题：Tilt sensor FBG temperature self-compensation silicon oil vibration damping 

摘      要：In this paper,a high-sensitivity fiber Bragg grating(FBG)tilt sensor using a cantilever-based structure is *** FBGs are fixed on a specially designed *** end of the elastomer is connected to the mass block,and the other end is connected to the *** principle of the tilt sensor is introduced in detail,and the mathematical model is *** performance of the sensor is *** results show that there is a good linear relationship between the central wavelength difference of the two FBGs and the tilt angle in the range of-5°to 5°.The repeatability of the sensor is good,and the tilt sensitivity can reach 231.7 pm/°.The influence of the silicone oil on the damping capacity of the sensor is *** results show that the damping capacity of the sensor has been improved by sealing the silicone oil inside the shell of the *** field test is carried out on a pier of an elevated bridge,and the result is good,which verifies the practicability of the sensor.