| 基于光纤光栅的斜拉桥索力在线监测 |
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| 引用本文： | 张戌社, 杜彦良, 金秀梅, 孙宝臣. 基于光纤光栅的斜拉桥索力在线监测[J]. 交通运输工程学报, 2003, 3(4): 22-24. |
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| 作者姓名： | 张戌社 杜彦良 金秀梅 孙宝臣 |
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| 作者单位： | 1.北京交通大学 机电学院, 北京 100044;;2.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 |
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| 基金项目： | 国家自然科学基金项目(50278058)，铁道部重点科研项目(2000G19-2) |
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| 摘 要： | 应用光纤传感测试技术, 将光纤光栅刚性粘贴于传感头外表面上, 使传感头承受拉索的索力, 通过对光纤光栅波长移动量的解调, 就可以测出索力的大小。并将光纤光栅和电阻应变片两种索力测量方法进行了实验对比。实验结果与理论分析证明, 该测试系统具有结构简单、测量范围大、稳定性和线性度好等特点, 既可用于斜拉桥施工阶段的索力测定, 也可用于结构长期的安全监测。
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| 关 键 词： | 桥梁工程 斜拉桥 索力 监测 光纤Bragg光栅 应变传感 温度传感 |
| 文章编号： | 1671-1637(2003)04-0022-03 |
| 收稿时间： | 2003-06-09 |
| 修稿时间： | 2003-06-09 |
In-suit monitoring for cables' tension with optical fiber grating sensors |
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| ZHANG Xu-she, DU Yan-liang, JIN Xiu-mei, SUN Bao-chen. In-suit monitoring for cables' tension with optical fiber grating sensors[J]. Journal of Traffic and Transportation Engineering, 2003, 3(4): 22-24. |
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| Authors: | ZHANG Xu-she DU Yan-liang JIN Xiu-mei SUN Bao-chen |
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| Affiliation: | 1. School of Mechanical and Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China;;2. Institute of Structural Health Monitoring and Control, Shijiazhuang Railway Institute, Shijiazhuang 050043, China |
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| Abstract: | The monitoring of cables' tension is very important for cable bridge safe operation with optical fiber grating sensors. The monitoring system was developed. In this system, the optical fiber was con-nected with sensers that were fixed on cables. The wave length of fiber varied with cables tension change, so the cables tension can be monitored by surveying fiber's wave length. The testing results show that this system has good performance and linear response capacity. 1 tab, 3 figs, 8 refs. |
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| Keywords: | bridge engineering cable bridge cable tension monitoring fiber grating strain sensing temperature sensing. |
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