| 磁致旋光效应在测量脉冲大电流中的应用 |
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| 引用本文： | 高经伍,赵凤华,白雪峰.磁致旋光效应在测量脉冲大电流中的应用[J].微计算机信息,2005(24). |
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| 作者姓名： | 高经伍 赵凤华 白雪峰 |
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| 作者单位： | 吉林东北电力学院自动化系，吉林东北电力学院机电系，吉林东北电力学院自动化系 |
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| 摘 要： | 本文提出一种利用磁致旋光效应(法拉第效应)测量脉冲大电流的方法。这是一种是实时、在线、非接触测量大电流方法。利用本文提出的方法,可检测到雷电引起的输电线路的瞬间脉冲大电流。该方法采用的磁质旋光效应介质(三氯化铁)安全无毒,采用的激光光源(半导体激光器)输出光强稳定,价格低廉,使用寿命长(约10000小时)。这是一种值得推广的测量脉冲大电流方法。
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| 关 键 词： | 激光 磁致旋光效应 法拉第效应 电流强度 |
The application of magnetic rotation effect in measuring strong impulse current |
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| Gao,Jingwu Bai,Xuefeng Zhao,Fenghua.The application of magnetic rotation effect in measuring strong impulse current[J].Control & Automation,2005(24). |
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| Authors: | Gao Jingwu Bai Xuefeng Zhao Fenghua |
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| Affiliation: | (Department of Automation Northeast China Insti- tute of Electric Power Engineering Jilin 132044) Gao,Jingwu Bai,Xuefeng (Department of machine- electrical Northeast China Institute of Electric city Power Engineering Jilin city 132044) Zhao,Fenghua |
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| Abstract: | A new method of measuring strong impulse current with magnetic rotation effect (Faraday effect) was put forward. With the real- time, on- line and non- touch method, strong im- pulse current in a blink of power transmission line caused by thunder can be check. The measuring medium used in the method is safe and innocuous. Laser lamp- house (semiconductor laser producer) has many advantages, such as steady output light intensity, cheap price and long life (about 10000 hours). There- fore, it is a method deserves to extend. |
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| Keywords: | Laser magnetic rotation effect Faraday effect cur- rent intensity |
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