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Research of three-dimensional force sensor based on multiplexed fiber Bragg grating strain sensors

机译：基于多路光纤布拉格光栅应变传感器的三维力传感器的研究

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摘要

Most safety problems of architectural structures are caused by structural deformation, and the structures usually deform in more than one direction. So it is important and necessary to collect the safety monitoring data from all directions. Conventional fiber Bragg grating (FBG) sensors cannot fully meet the requirements of a modern safety monitoring system in practical application. Therefore, the research of a three-dimensional (3-D) force sensor that can expand the application range of fiber optic sensing technology is necessary and significant. A 3-D force sensor based on multiplexed FBG strain sensors is proposed, which can be used to measure 3-D force on a structure under test, force distribution, and the trend of relative microdeformation. The sensor that has an integral structure with a design has been described in detail, and its sensing principle has been investigated. The results of calibration experiments show that it can accurately and effectively realize the 3-D force measurement with good linearity, repeatability, and consistency. Experimental and analytical results both demonstrate its feasibility. It can work in harsh environments due to its good stability and anti-interference ability. The sensor proposed in this paper has great engineering application value and application prospects in the field of structure health monitoring.
机译：建筑结构的大多数安全问题是由结构变形引起的，并且结构通常在多个方向上变形。因此，从各个方向收集安全监控数据非常重要和必要。常规的光纤布拉格光栅（FBG）传感器在实际应用中不能完全满足现代安全监控系统的要求。因此，研究能够扩大光纤传感技术应用范围的三维（3-D）力传感器是必要且有意义的。提出了一种基于多路FBG应变传感器的3D力传感器，该传感器可用于测量被测结构上的3D力，力分布以及相对微变形的趋势。已经详细描述了具有设计整体结构的传感器，并且已经研究了其感测原理。校准实验的结果表明，它可以准确有效地实现3-D力测量，具有良好的线性，可重复性和一致性。实验和分析结果均证明了其可行性。它具有良好的稳定性和抗干扰能力，因此可以在恶劣的环境中工作。本文提出的传感器在结构健康监测领域具有很大的工程应用价值和应用前景。

著录项

  • 来源
    《Optical engineering》 |2017年第4期|047103.1-047103.5|共5页
  • 作者

    Hui-Chao Xu; Su Wang; Xin-Gang Miao;

  • 作者单位

    BeiHang University, School of Mechanical Engineering and Automation, Beijing, China;

    BeiHang University, School of Mechanical Engineering and Automation, Beijing, China,Beijing University of Civil Engineering and Architecture, Beijing Engineering Research Center of Monitoring for Construction Safety, Beijing, China;

    Beijing University of Civil Engineering and Architecture, Beijing Engineering Research Center of Monitoring for Construction Safety, Beijing, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    fiber Bragg grating; three-dimensional force sensor; architectural structure; safety monitoring; finite element analysis;

    机译：布拉格光纤光栅三维力传感器建筑结构;安全监控;有限元分析;

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