| 长周期光纤光栅温度和应力传感特性研究 |
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| 引用本文： | 刘云启,赵东晖,葛春风,郭转运,刘志国,开桂云,董孝义,谭华耀.长周期光纤光栅温度和应力传感特性研究[J].光子学报,1999,28(2):142-145. |
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| 作者姓名： | 刘云启 赵东晖 葛春风 郭转运 刘志国 开桂云 董孝义 谭华耀 |
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| 作者单位： | 1. 南开大学现代光学研究所,天津,300071
2. 香港理工大学电机工程系,香港 |
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| 基金项目： | 国家自然科学基金,国家攀登计划预选项目 |
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| 摘 要： | 本文报道了长周期光纤光栅(LPG)温度和应力传感特性的实验研究结果,测得LPG的温度和应力灵敏系数均高于光纤布喇格光栅(FBG)灵敏系数的典型值,在11～80℃和0～100gf的温度和应力测量范围内,温度和应力响应曲线具有较好的线性.基于同一LPG不同透射波长具有不同温度和应力灵敏度的特性,实现了温度和应力的单光栅同时测量.
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| 关 键 词： | 长周期光纤光栅 传感 同时测量 |
| 收稿时间： | 1998-10-26 |
| 修稿时间： | 1998-10-26 |
LONG-PERIOD FIBER GRATING TEMPERATURE AND STRAIN SENSOR |
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| Liu Yunqi,Zhao Donghui,Ge Chunfeng,Guo Zhuanyun,Liu Zhiguo,Kai Guiyun,Dong Xiaoyi,Tam H Y.LONG-PERIOD FIBER GRATING TEMPERATURE AND STRAIN SENSOR[J].Acta Photonica Sinica,1999,28(2):142-145. |
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| Authors: | Liu Yunqi Zhao Donghui Ge Chunfeng Guo Zhuanyun Liu Zhiguo Kai Guiyun Dong Xiaoyi Tam H Y |
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| Institution: | 1. Institute of Modern Optics, Nankai University, Tianjin 300071;2. Department of Electrical Engineering, Hong Kong Polytechnic University, Hong Kong |
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| Abstract: | The experimental results of Long-period fiber grating (LPG) temperature and strain sensor are reported.The measured temperature and strain sensitivity of LPG is higher than that of normal fiber Bragg grating (FBG).In the temperature range 11～80℃ and strain rang 0～100gf,the response curves of LPG have good linearity.We measured the temperature and strain simultaneously,by utilizing the property that two different transmission wavelengths of the same LPG have different temperature and strain sensitivity. |
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| Keywords: | Long period fiber grating Sensor Simultaneous measurements |
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