| 单个光纤布喇格光栅实现应变温度同时测量的研究 |
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| 引用本文： | 王远生,杨冬晓,毕岗,方培沈.单个光纤布喇格光栅实现应变温度同时测量的研究[J].传感技术学报,2004,17(3):449-452. |
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| 作者姓名： | 王远生 杨冬晓 毕岗 方培沈 |
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| 作者单位： | 浙江大学信息与电子工程学系,杭州,310027;浙江大学信息与电子工程学系,杭州,310027;浙江大学信息与电子工程学系,杭州,310027;浙江大学信息与电子工程学系,杭州,310027;浙江大学信息与电子工程学系,杭州,310027 |
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| 基金项目： | 国家自然科学基金，高等学校博士学科点专项科研项目 |
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| 摘 要： | 实现单个光纤布喇格光栅同时测量应变和温度的实验系统.在该系统中,温度变化使光栅的布喇格波长位移,应变使反射谱分裂成双峰.结果表明,根据光栅的初始布喇格波长和两个分裂的布喇格波长可以同时确定应变和温度的变化.应变和温度灵敏度的实验结果分别为1.172 pm/με和10.78 pm/℃.该系统在结构健康监测、智能材料和结构等领域有应用前景.
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| 关 键 词： | 光纤光栅 温度 应变 传感 |
| 文章编号： | 1004-1699(2004)03-0449-04 |
| 修稿时间： | 2004年6月8日 |
Simultaneous Measurements of Strain and Temperature with a Fiber Bragg Grating |
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| WANG Yuansheng,YANG Dongxiao,BI Gang,FANG Peishen,YI Lin.Simultaneous Measurements of Strain and Temperature with a Fiber Bragg Grating[J].Journal of Transduction Technology,2004,17(3):449-452. |
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| Authors: | WANG Yuansheng YANG Dongxiao BI Gang FANG Peishen YI Lin |
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| Affiliation: | Department of Information and Electronic Engineering , Zhejiang University , Hangzhou 310027 , C |
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| Abstract: | An experimental system for simultaneous measurements of strain and temperature based on a fiber Bragg grating is established. The temperature change shifts the Bragg grating wavelength, and the applying strain splits the reflection spectrum into two peaks in this system. The results show that stain and temperature changes can be simultaneously determined according to the initial Bragg wavelength and two split Bragg wavelengths. Strain and temperature sensitivities are measured to be 1.172 pico-meters per micro-strain and 10.78 pico-meters per Celsius degree, respectively. This system can be used in some sensing areas, such as framework health supervising, smart materials and structures. |
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| Keywords: | fiber grating temperature strain sensor |
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