| 光纤Bragg光栅应变传感器在桥梁结构监测中的应用 |
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| 引用本文： | 张矿伟,张少杰,赵晓霞,王跃飞,陈焰.光纤Bragg光栅应变传感器在桥梁结构监测中的应用[J].光学仪器,2014,36(1):15-19. |
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| 作者姓名： | 张矿伟 张少杰 赵晓霞 王跃飞 陈焰 |
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| 作者单位： | 昆明理工大学 信息工程与自动化学院, 云南 昆明 650500;周口职业技术学院 机电工程系, 河南 周口 466000;昆明理工大学 信息工程与自动化学院, 云南 昆明 650500;昆明理工大学 信息工程与自动化学院, 云南 昆明 650500;昆明理工大学 信息工程与自动化学院, 云南 昆明 650500 |
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| 基金项目： | 云南省应用基础研究基金项目（KKSA201331004） |
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| 摘 要： | 为了更准确了解桥梁结构变化情况,提出了一种新的检测方法。采用串联式组网方法,用光纤Bragg光栅(FBG)表面式应变传感器,对大桥左线衬砌裂缝及其长期变形进行监测。对裂缝存在区域的20个监测断面进行近一年的监测结果表明,对温度(测量记录最大温差6.4℃)进行补偿后,光纤Bragg光栅应变传感器的应变在正常范围内,表明在监测期桥梁结构稳定无异常变化。
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| 关 键 词： | 光纤Bragg光栅 应变传感器 桥梁监测 |
| 收稿时间： | 2013/10/11 |
Application of FBG strain sensors in bridge structure monitoring system |
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| ZHANG Kuangwei,ZHANG Shaojie,ZHAO Xiaoxi,WANG Yuefei and CHEN Yan.Application of FBG strain sensors in bridge structure monitoring system[J].Optical Instruments,2014,36(1):15-19. |
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| Authors: | ZHANG Kuangwei ZHANG Shaojie ZHAO Xiaoxi WANG Yuefei and CHEN Yan |
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| Affiliation: | Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming 650500, China;Department of Mechanical and Electrical Engineering, Zhoukou Vocational and Technical College, Zhoukou 466000, China;Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming 650500, China;Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming 650500, China;Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming 650500, China |
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| Abstract: | In order to more accurately understand the changes in the bridge structure,a new method of detection was proposed.Fiber Bragg grating （FBG） surface strain sensors were applied in monitoring the lining cracking and the deformation of bridge tunnel left.20 crack sections had been monitored for nearly a year.The monitoring results indicated that after temperature （the maximum measured temperature difference was 6.4 ℃） was compensated,the strain of fiber Bragg grating strain sensor was in the normal range and indicated that the tunnel structure was in a stable and normal condition during the monitoring period. |
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| Keywords: | fiber Bragg grating strain sensor bridge monitoring |
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