| 光纤光栅三维应力传感器的设计与实现 |
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| 引用本文： | 兰玉文,刘波,罗建花.光纤光栅三维应力传感器的设计与实现[J].光子学报,2009,38(3):656-659. |
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| 作者姓名： | 兰玉文 刘波 罗建花 |
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| 作者单位： | 南开大学,现代光学研究所,光电信息技术教育部重点实验室,天津,300071 |
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| 基金项目： | 863项目(2006AA01Z217)；国家自然基金重点项目(60736039)；天津市高等学校科技发展基金项目(20060609)；光电信息技术教育部重点实验室开放基金项目;国家自然科学基金资助 |
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| 摘 要： | 以光纤光栅为敏感元件,设计并实现了一种基于圆柱结构的三维应力传感器.该传感器由三个光纤布喇格光栅等角度粘贴在圆柱体探头而实现.对这种三维传感器应用材料力学理论进行了传感原理的推导与分析,并进行了任意方向上应力大小的传感测量实验.实验表明:这种传感器可以准确测量三维空间任意方向的应力大小及方向,测量线性度高;在0-5N的测量范围内,误差不超过±1.58%,分辨率为9.2×10－3N.
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| 关 键 词： | 光纤光学 应力传感器 三维 光纤光栅 Fiber optics Strain sensor 3-dimensional FBG |
| 收稿时间： | 2007-11-13 |
| 修稿时间： | 2008-03-11 |
3-Dimensional Strain Sensor in Fiber Bragg Grating |
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| LAN Yu-wen,LIU Bo,LUO Jian-hua.3-Dimensional Strain Sensor in Fiber Bragg Grating[J].Acta Photonica Sinica,2009,38(3):656-659. |
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| Authors: | LAN Yu-wen LIU Bo LUO Jian-hua |
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| Institution: | Key Laboratory of Opto-Electronic Information and Technology;Ministry of Education;Institute of Modern Optics;Nankai University;Tianjin 300071;China |
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| Abstract: | A 3-dimensional strain sensor with fiber Bragg grating (FBG) was designed and realized.The sensor was based on cylinder structure,with three FBGs fixed on surface of cylinder by 120° angle intervals.This 3D sensor was theoretically demonstrated with material mechanics,and experiment was taken with stress of serials on a random direction.Experiment results show that the sensor can measure strain in any direction in 3-dimension space.The measure results have high linearity and error below 1.58% in measure range of 0-5N,and its′ measure precision can reach 9.2×10－3N. |
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| Keywords: | Fiber optics Strain sensor 3-dimensional FBG |
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