| 光纤Bragg光栅应力测量的研究 |
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| 引用本文： | 王玉田,曹丽芳.光纤Bragg光栅应力测量的研究[J].传感技术学报,2007,20(5):1193-1195. |
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| 作者姓名： | 王玉田 曹丽芳 |
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| 作者单位： | 1. 燕山大学电气工程学院,河北,秦皇岛,066004
2. 燕山大学电气工程学院,河北,秦皇岛,066004;中国航天时代电子公司230厂,北京,100854 |
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| 摘 要： | 提出一种温度补偿光纤光栅应力传感器,即将光纤布拉格光栅粘贴在应力分布不同的悬臂梁上.通过理论推导得出,光纤光栅反射波长的两个反射峰之间的距离与应力成线性关系,而不受温度变化影响.实验时,当所加砝码为70 g时,出现两个反射峰;继续增加到180 g,两个反射峰中心波长达到0.15 nm.对实验数据进行数据拟合,线性拟合度达到0.97,进一步证明了该方法的可行性和有效性.
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| 关 键 词： | 布拉格光栅 温度干扰 应力测量 悬臂梁 |
| 文章编号： | 1004-1699（2007）05-1193-03 |
| 收稿时间： | 2006-07-11 |
| 修稿时间： | 2006-08-06 |
Research of stress survey by fiber Bragg grating |
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| WANG Yu-tian,CAO Li-fang.Research of stress survey by fiber Bragg grating[J].Journal of Transduction Technology,2007,20(5):1193-1195. |
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| Authors: | WANG Yu-tian CAO Li-fang |
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| Affiliation: | 1. College of Electrical Engineering, Yah.shah University, Qinhuangdao, Hebei 066004, China; 2. No. 230 Factory of China Aerospace Times Electronics Corporation, Beijing 100854, China |
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| Abstract: | One kind of temperature compensation fiber grating stress sensor is proposed. FBCJ is stuck on a special-structured cantilever. Through the theory deducing, the distance of center wavelengths of two reflecting peaks is relative not to temperature change but load variety as linearity. In the experiment, two reflecting peaks appear as weights are 70 g. When weights are added to 180 g, the distance of two center wavelengths is 0. 15 nm. Carries on the data fitting to the experimental findings, and the linearity is up to 0.97, which indicates the feasibility and validity of this method. |
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| Keywords: | Fiber Bragg grating temperature disturbance stress measurement cantilever |
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