基于光纤Bragg光栅的悬臂梁式力检测系统

详细信息    查看全文 | 推荐本文 |

英文篇名：Design of force and strain detection system based on fiber Bragg grating with a cantilever beam 作者：茶映鹏 ; 李恩旻 ; 彭星玲 ; 张华 英文作者：CHA Yingpeng;LI Enmin;PENG Xingling;ZHANG Hua;School of Mechanical & Electrical Engineering,Nanchang Institute of Technology;School of Mechatronic Engineering,Nanchang University;Substation Management Office of Guangdong Zhanjiang Power Supply Bureau; 关键词：光纤布拉格光栅 ; 毛细管封装 ; 温度传感 ; 力传感 英文关键词：fiber Bragg grating;;capillary encapsulation;;temperature sensing;;strain sensing 中文刊名：NCSB 英文刊名：Journal of Nanchang Institute of Technology 机构：南昌工程学院机械与电气工程学院;南昌大学机电工程学院;广东省湛江供电局变电管理所; 出版日期：2019-06-28 出版单位：南昌工程学院学报 年：2019 期：v.38;No.140 基金：江西省教育厅科学技术研究项目(GJJ171007) 语种：中文; 页：NCSB201903019 页数：4 CN：03 ISSN：36-1288/TV 分类号：105-108

摘要

采用毛细金属管对光纤光栅进行了封装,设计了一种悬臂梁式光纤布拉格光栅力检测装置,对光纤光栅的温度和力传感性能进行了实验研究,分析了基于悬臂梁的双光纤Bragg光栅的力灵敏度。结果表明:毛细金属管能够对光纤光栅提供较好的保护,封装后其温度和力传感性能稳定,温度灵敏度为11. 1 pm/℃,力灵敏度为0. 891pm/N,而在悬臂梁上正反面粘贴两个相同的FBG能够进行温度补偿的同时,使力灵敏度提高两倍。
        A fiber Bragg grating was encapsulated by a capillary metal tube,and a force and strain detection device based on a cantilever pasted with the fiber Bragg grating is designed. After that,the temperature and force sensing characteristics of the fiber Bragg grating were studied experimentally. Finally the force and strain sensitivities of double fiber Bragg grating based on cantilever beam were analyzed. The results show that the capillary metal tube can protect the fiber Bragg grating,and its temperature and force sensing performance are stable after package. The temperature sensitivity is 11. 1 pm/℃ and the force sensitivity is 0. 891 pm/N. The temperature compensation can be made and the force and strain sensitivity will be increased by twice by installing two identical FBGs on the front and back of the cantilever beam.

引文

[1]丁秀英,张亚坤,赵海滨,等.五岳水库主坝结构安全分析评价[J].南昌工程学院学报. 2011,30(1):64-71.
    [2]杨庚鑫,马德萍,张林,等.地质力学模型试验中软弱结构面内埋式位移系统的研制与应用[J].岩土力学,2014(3):901-907.
    [3]张向东,柴源,刘佳琦.振弦式应变计在箱型梁桥中的测试技术[J].辽宁工程技术大学学报:自然科学版,2015,34(1):48-51.
    [4]马洒洒,王彬,李川,等.基于FBG应变传感器的隧道安全实时监测算法研究[J].仪器仪表学报,2017(2):304-311.
    [5]Shen Y S,Xia L,Cheng C,et al. The sleep quality of real-time monitoring system based on fiber-bragg-grating.[J]. Journal of Sensor Technology and Application,2014(2):11-18.
    [6]李旭辉,黄奕辉,吴兴颜,等.分布式光纤监测技术在边坡工程中的应用[J].南昌工程学院学报,2018,37(3):34-36.
    [7]任亮,姜涛,李东升,等.微型FBG应变传感器在大坝模型实验中的应用[J].振动、测试与诊断,2013(2):277-283,341.
    [8]金峰,周宜红.分布式光纤测温系统在特高拱坝真实温度场监测中的应用[J]武汉大学学报:工学版,2015(4):451-458.
    [9]徐健,杨德兴,姜亚军,等.利用双光杠杆测量非等截面光纤布拉格光栅传感器的应变系数[J].光学精密工程,2016,24(2):245-250.
    [10]余有龙,刘志国,董孝义,等.用于光纤光栅线性调谐的悬臂梁结构优化[J].光子学报,1998(8):43-47.