| 预应力筋准分布光纤传感测试方法研究 |
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| 引用本文： | 金秀梅,杜彦良,孙宝臣.预应力筋准分布光纤传感测试方法研究[J].石家庄铁道学院学报,2006,19(1):18-21,116. |
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| 作者姓名： | 金秀梅 杜彦良 孙宝臣 |
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| 作者单位： | 北京交通大学机械与电子控制工程学院 北京100044(金秀梅)，石家庄铁道学院大型结构健康诊断与控制研究所 河北石家庄050043(杜彦良，孙宝臣) |
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| 基金项目： | 国家自然科学基金资助项目(50278058) |
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| 摘 要： | 针对目前用传统测试方法难以有效地对预应力筋的应力状态进行分布测试的现状,提出了采用基于普通光纤的螺旋缠绕式准分布光纤应变传感器进行测试的新方法,分析了其结构设计思想和传感原理,并对其传感特性进行了理论分析和试验研究。此传感系统的研究为预应力筋应力状态的准分布测试探索了一条新的解决途径。
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| 关 键 词： | 准分布 瑞利散射 光时域反射计 预应力筋 |
| 文章编号： | 1006-3226（2006）01-0018-05 |
| 收稿时间： | 2005-03-07 |
| 修稿时间： | 2005-03-07 |
Research on Quasi - distributed Monitoring of Prestressed Reinforcement by Using Optical Fiber Sensor |
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| Jin Xiumei,Du Yanliang,Sun Baochen.Research on Quasi - distributed Monitoring of Prestressed Reinforcement by Using Optical Fiber Sensor[J].Journal of Shijiazhuang Railway Institute,2006,19(1):18-21,116. |
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| Authors: | Jin Xiumei Du Yanliang Sun Baochen |
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| Institution: | Department of Communications Engineering, Shijiazhuang Railway Institute, Shijiazhuang 050043, China |
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| Abstract: | It is difficult to use conventional methods to monitor the distributed stress status of prestressed reinforcement.In this paper,the spiral winding optical fiber strain sensor is proposed as a new solution to monitoring distributed stress status.The thought of structure design and sensing theory are analyzed,and the sensing characteristics are theoretically and experimentally studied.The sensing system provides a new exploration into the quasi-distributed stress monitoring of prestressed reinforcement. |
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| Keywords: | quasi-distribution rayleigh scattering optical time domain reflectometer prestressed reinforcement |
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