| 光学电流传感器系统的线性双折射问题及对策 |
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| 引用本文： | 刘晔,夏建生,张贇.光学电流传感器系统的线性双折射问题及对策[J].传感器与微系统,2000,19(3):11-14. |
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| 作者姓名： | 刘晔 夏建生 张贇 |
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| 作者单位： | 西安交通大学,电气工程学院,陕西,西安,710049 |
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| 摘 要： | 研究了用于测量电力系统电流的光学电流传感器系统 ,用矩阵光学方法建立了既具有旋光效应又具有线性双折射效应的光学电流传感器系统的数学模型 ,分析了线性双折射效应对光学电流传感器在灵敏度、线性度、稳定性等方面的影响。从而说明 :线性双折射效应是限制光学电流传感器实用化的关键因素。文中提供了一些被证明是行之有效的解决线性双折射问题的方法
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| 关 键 词： | 光学电流传感器 法拉第磁光效应 线性双折射效应 神经网络 |
Problem of linear birefringence effect in optical current transducer and its countermeasure |
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| LIU Ye,XIA Jian-sheng,ZHANG Yun.Problem of linear birefringence effect in optical current transducer and its countermeasure[J].Transducer and Microsystem Technology,2000,19(3):11-14. |
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| Authors: | LIU Ye XIA Jian-sheng ZHANG Yun |
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| Abstract: | An optical current transducer (OCT) system which is applicable to measure current of electric power system is introduced.A mathematics model for this system with Faraday sensor works on both Faraday magneto-optic effect and linear birefringence effect by the method of matrix optics is developed.The linear birefringence effect's influence on sensitivity, linearity and steadiness of the system and draws a conclusion that the main factor affected the performance of the system is linear birefringence effect is analyzed.Finally some useful countermeasures to linear birefringence effect are provided. |
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| Keywords: | optical current transducer(OCT) faraday magneto-optic effect linear birefringence effect neural network |
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