| 法布里-珀罗光纤温度传感器的理论模型与仿真 |
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| 引用本文： | 王党树,王新霞.法布里-珀罗光纤温度传感器的理论模型与仿真[J].仪表技术,2014(4):50-52. |
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| 作者姓名： | 王党树 王新霞 |
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| 作者单位： | 西安科技大学电气与控制工程学院,陕西西安710054 |
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| 摘 要： | 设计了一种新型F-P(Fabry-Perot)干涉腔式温度传感器,具有高灵敏度、电绝缘性及抗电磁干扰等优点,能够胜任极端恶劣环境下的温度测量。采用腔内端面的反射光数学模型,并考虑输出光功率的线性度,对F-P传感腔初始腔长H、光纤端面反射率r的选取进行了优化设计与分析。应用有限元分析软件ANSYS对传感器的理论模型进行仿真与验证,模拟结果显示,当待测温度的变化范围为0~100℃时,干涉腔腔长随温度近似于线性变化,相应的理论灵敏度为1.636 nm/℃,精度为±0.2℃。
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| 关 键 词： | 法布里-珀罗(F-P) ANSYS 初始腔长 光纤温度传感器 |
Theoretical Model and Simulation of Fabry-Perot Fiber Temperature Sensor |
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| WANG Dang-shu,WANG Xin-xia.Theoretical Model and Simulation of Fabry-Perot Fiber Temperature Sensor[J].Instrumentation Technology,2014(4):50-52. |
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| Authors: | WANG Dang-shu WANG Xin-xia |
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| Affiliation: | ( School of Electrical and Control Engineering, Xi＇ an University of Science and Technology, Xi＇ an 710054, China) |
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| Abstract: | A novel Fabry-Perot （F-P） cavity temperature sensor is presented in the paper. Due to its characteristics including high sensitivity and immunity to electro-magnetic interference, it is especially suitable for some rugged environ- ment. Mathematical model of reflected light from F-P interferential cavity is deduced. Optimal design and simulation of F-P cavity＇ s original size and the choice of optical fiber surface＇ s reflection ratio are discussed. Simulation and analysis of sensor＇ s theoretical model are realized by ANSYS. The length of the F-P cavity approximately linearly changes with the temperature when the measured temperature ranges in 0- 100℃ with the corresponding theoretical sensibility of 1.636 nm/℃ and accuracy of ±0.2℃. |
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| Keywords: | Fabry-Perot（ F-P ） ANSYS original length of the cavity optical fiber temperature sensor |
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