| Mach-Zehnder干涉仪差分检测布里渊温度和应变同时传感系统 |
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| 引用本文： | 李永倩,李卓明,何玉钧,宋文妙.Mach-Zehnder干涉仪差分检测布里渊温度和应变同时传感系统[J].华北电力大学学报,2007,34(3):27-30. |
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| 作者姓名： | 李永倩 李卓明 何玉钧 宋文妙 |
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| 作者单位： | 华北电力大学,电气与电子工程学院,河北,保定,071003;华北电力大学,电气与电子工程学院,河北,保定,071003;华北电力大学,电气与电子工程学院,河北,保定,071003;华北电力大学,电气与电子工程学院,河北,保定,071003 |
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| 摘 要： | 分析了基于自发布里渊散射的温度和应变分布同时测量原理,针对已报导的外差检测和直接检测系统中存在的问题,提出了一种基于单通光纤Mach-Zehnder干涉仪(MZI)的双端差分检测布里渊温度和应变同时传感系统,通过理论分析证明了系统的可行性。该系统具有成本低,实现简单,可消除光源频率不稳定性干扰等特点,在分布式光纤温度和应变同时测量中具有广阔的应用前景。
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| 关 键 词： | 光纤传感 温度 应变 布里渊散射 |
| 文章编号： | 1007-2691（2007）03-0027-04 |
| 修稿时间： | 2006-12-05 |
Simultaneous sensing system of temperature and strain based on Mach-Zehnder interferometer differential detection of Brillouin scattering |
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| LI Yong-qian,LI Zhuo-ming,HE Yu-jun,SONG Wen-miao.Simultaneous sensing system of temperature and strain based on Mach-Zehnder interferometer differential detection of Brillouin scattering[J].Journal of North China Electric Power University,2007,34(3):27-30. |
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| Authors: | LI Yong-qian LI Zhuo-ming HE Yu-jun SONG Wen-miao |
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| Abstract: | The theory of simultaneous measurement of temperature and strain based on Brillouin scattering is analyzed.By analyzing the problems of the present methods,an all fiber Mach-Zehnder interferometer differential detection system is proposed,which can measure temperature and strain simultaneously.Through analyzing the theory of the system,the feasibility of the system is proved.It has lots of merits,such as low cost,simple,stable and so on.These merits make it a prospective way to implement simultaneous measurement of temperature and strain. |
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| Keywords: | optical fiber sensor temperature strain Brillouin scattering |
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