| 光纤光栅弹簧管压力传感器的压力和温度特性 |
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| 引用本文： | 刘云启,郑建成.光纤光栅弹簧管压力传感器的压力和温度特性[J].光子学报,1998,27(12):1111-1115. |
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| 作者姓名： | 刘云启 郑建成 |
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| 作者单位： | [1]南开大学现代光学研究所 [2]香港城市大学电机工程系 |
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| 摘 要： | 本文利用弹簧管对于压力的机械放大作用,将弹簧管与光纤光栅悬臂梁调谐技术相结合,研制了一种新颖的光纤光栅弹簧管压力传感器,大大提高了光纤布喇格光栅对压力测量的灵敏度,压力灵敏度系数可达-1.79×10-4/MPa,比裸光栅提高了两个数量级,在0～12MPa的压力范围内,光纤布喇格光栅中心反射波长的改变与压力成良好的线性关系.同时由于悬臂梁热膨胀效应的影响,光纤光栅的温度灵敏度提高为裸光栅的7倍.
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| 关 键 词： | 光纤布喇格光栅 压力传感器 灵敏度 |
| 收稿时间： | 1998-08-10 |
PRESSURE AND TEMPERATURE PROPERTIES OF FIBER GRATING BOURDON TUBE PRESSURE SENSOR |
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| Liu Yunqi,Liu Zhiguo,Guo Zhuanyun,Ge Chunfeng,Dong Xiaoyi Institute of Morden Optics,Nankai University,Tianjin Chiang K S,Lee K O.PRESSURE AND TEMPERATURE PROPERTIES OF FIBER GRATING BOURDON TUBE PRESSURE SENSOR[J].Acta Photonica Sinica,1998,27(12):1111-1115. |
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| Authors: | Liu Yunqi Liu Zhiguo Guo Zhuanyun Ge Chunfeng Dong Xiaoyi Institute of Morden Optics Nankai University Tianjin Chiang K S Lee K O |
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| Institution: | Liu Yunqi,Liu Zhiguo,Guo Zhuanyun,Ge Chunfeng,Dong Xiaoyi Institute of Morden Optics,Nankai University,Tianjin 300071 Chiang K S,Lee K O Department of Electronic Engineering,City University of Hong Kong,Hong Kong Received date:1998-08-10 |
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| Abstract: | A novel FBG Bourdon rube sensor has been constructed,combining Bourdon tube with FBG cantilever beam tunable technology.This configuration acts as mechanical amplifier and increases the pressure sensitivity of the in fiber grating sensor effectively.The measured pressure sensitivity is -1 79?10-4 MPa,which is two orders of magnitude higher than a simple monomode fiber with an bare fiber grating.In the range of 12MPa,the wavelength shift of FBG is linear with the pressure of the medium.The measured temperature sensitivity has been enhanced by a factor of seven for the configuration because of the thermal expand effect of the cantilever beam. |
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| Keywords: | Fiber Bragg grating Pressure sensor Sensitivity |
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