Magneto-optical current sensor by domain wall motion in orthoferrites
Magneto-optical current sensor by domain wall motion in orthoferrites
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DOI：
10.1109/19.836301
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发表时间：
2000-02
期刊：
影响因子：
--
通讯作者：
Y. Didosyan;H. Hauser;J. Nicolics;V. Y. Barash;P. Fulmek
中科院分区：
文献类型：
--
作者：
Y. Didosyan;H. Hauser;J. Nicolics;V. Y. Barash;P. Fulmek
简要介绍了基于法拉第效应的光电流测量的最新进展。在所有现有的磁光电流互感器中，主要测量参数是由传感器元件透射的光的偏振状态。本文利用有关畴壁激励的新结果描述了一种新的Transformer。测量的参数是具有相反磁化的畴之间的边界的几何位置。在包括直流电流的宽频带中，测量结果是测量电流的线性函数。它们不受温度变化和机械因素的影响。
A brief review of the latest developments on optical current measurements based on the Faraday effect is presented. In all existing magneto-optical current transformers, the main measured parameter is the polarization state of the light transmitted by a sensor element. A new transformer is described by means of new results concerning the domain wall excitation. The measured parameter is the geometrical position of the boundary between domains with opposite magnetizations. In a wide frequency band, including DC currents, the measurement results are a linear function of the measured current. They are not affected by temperature changes and mechanical factors.