首页|基于FBG传感器的三维空间应变监测

基于FBG传感器的三维空间应变监测

Monitoring of Three-Dimensional Strains Based on FBG Sensors

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
  • 维普
目的 研究基于光纤布拉格光栅(FBG)传感器的三维空间应变监测方法,实现FBG传感器对测点三维空间应变状态的监测.方法 根据空间直角坐标系建立立方体框架,在框架内特定的方向上布设6个FBG应变传感器与1个FBG温度传感器形成三维空间FBG传感体,在所有传感器协同工作下,对测点的三维空间应变与温度进行监测.结果 给出了基于FBG传感器的三维空间主应变,最大切应变及任意方向正应变的计算方法,并且根据该计算方法在LabVIEW平台下开发了三维空间应变监测与分析系统.结论 根据本监测方法制作的三维空间FBG传感体可以应用在房屋、桥梁、道路、大坝、雕塑等结构的监测当中.该传感体与相应的解调设备和所研发的应变监测与分析系统构成了完整的三维空间应变监测体系.
This paper studied a monitoring method for three-dimensional strains based on FBG sensors,which realized monitoring three-dimensional strain state of the measuring point.A cube framework was established according to the space rectangular coordinate system.Six FBG strain sensors and one FBG temperature sensor were installed in specific directions in the framework to form a three-dimensional FBG sensing body.Under the cooperative work of all sensors,the threedimensional strains and temperature of the measuring point were monitored.Based on FBG sensors,a calculation method for the three-dimensional principal strain,the maximum shearing strain and normal strain of arbitrary orientation was given.A three-dimensional strains monitoring and analysis system was developed on the LabVIEW platform based on the calculation method.Conclusion is that the obtained three-dimensional FBG sensing body can be used in monitoring of houses,bridges,roads,dams,sculptures and so on.The sensing body with corresponding demodulation device,the developed strain monitoring and the analysis system constitutes a complete three-dimensional strain monitoring system.

FBG sensorthree dimensionsprincipal strainsmaximum shearing strainnormal strain of arbitrarg orientationLabVIEW

孙丽、张博

展开 >

沈阳建筑大学土木工程学院,辽宁沈阳110168

FBG传感器 三维空间 主应变 最大切应变 任意方向正应变 LabVIEW

国家自然科学基金国家自然科学基金新世纪优秀人才支持计划项目辽宁省高等学校创新团队项目辽宁省百千万人才工程资助项目沈阳市科技局大型仪器设备共享服务项目辽宁省自然科学基金

5117827751578347NCET-12-1013LT20150232014921045F14-192-4-002015020578

2015

10.11717/j.issn:2095-1922.2015.06.05

沈阳建筑大学学报(自然科学版)
沈阳建筑大学

沈阳建筑大学学报(自然科学版)

CSTPCD北大核心
影响因子：0.697
ISSN：2095-1922
年,卷(期)：2015.31(6)
  • 5
  • 9