| 多同心圆形光纤位移传感器的建模与仿真 |
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| 引用本文： | 李亚非,任金坤.多同心圆形光纤位移传感器的建模与仿真[J].长沙理工大学学报(自然科学版),2009,6(4):59-63. |
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| 作者姓名： | 李亚非 任金坤 |
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| 作者单位： | 长沙理工大学,汽车与机械工程学院,湖南,长沙,410004;长沙理工大学,汽车与机械工程学院,湖南,长沙,410004 |
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| 基金项目： | 湖南省教育厅科研项目 |
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| 摘 要： | 对一种新结构反射式光纤位移传感器进行了数学建模和计算机仿真分析，讨论了传感器输出特性与各参数之间的关系．数学模型表明，光纤束两输出信号之比能够消除光源发光强度波动及被测表面反射率变化对测量结果的影响．有利于提高抗干扰能力和测量精度．仿真结果不仅与前期试验结果基本吻合．而且有助于优化这类传感器的结构设计．
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| 关 键 词： | 光纤传感器 位移传感器 输出特性 数学模型 仿真 |
Modeling and simulation research on the optic fiber displacement sensor with multi-concentric distribution bundles |
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| LI Ya-fei,REN Jin-kun.Modeling and simulation research on the optic fiber displacement sensor with multi-concentric distribution bundles[J].Journal of Changsha University of Science and Technology:Natural Science,2009,6(4):59-63. |
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| Authors: | LI Ya-fei REN Jin-kun |
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| Institution: | (School of Automotive and Mechanical Engineering, Changsha University of Science and Technology,Changsha 410004,China) |
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| Abstract: | A new reflective fiber optic displacement sensor with multi-concentric distribution bundles is presented, whose mathematical model are set up and numerically simulated. The relations between the output characteristics and the various parameters have been discussed. The mathematical model indicates that the ratio of two outputs of the fiber bundle can eliminate the influence on the measured result caused by the unsteadiness of incident light intensity and the change of surface reflectivity. It is of advantage to enhance the ability of anti-interference and the precision of measurement. The simulation results resemble the earlier experimental results, and are suitable to optimize the structural design of this kind of sensor. |
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| Keywords: | optic fiber sensor displacement sensor output characteristics mathematical model simulation |
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