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投稿时间：2020-02-28
投稿时间：2020-02-28
中文摘要: 基于光学的干涉法，提出了一种实时测量雷电流峰值的方法。将雷电流引入导线圈中，然后将通入雷电流的导线圈放置于干涉仪的物光路中，使物光穿过导线圈的中心。当有雷电发生时，导线圈中心将产生反映雷电流峰值的电磁场。在物光路中引入电磁场，相当于在干涉仪的参考光路中引入附加的相位差，利用计算机计算出的相位分布可实时反推雷电流的峰值。实验结果表明，所搭建的装置可实时测量雷电流的峰值，并且结构简单，成本低，还具有很高的测量效率。
Abstract:Based on the optical interference method, a method for measuring the peak value of lightning current in real time is proposed.The lightning current is introduced into the guide coil, and then the guide coil passing the lightning current is placed in the object optical path of the interferometer so that the object light passes through the center of the guide coil.When lightning occurs, an electromagnetic field reflecting the peak of the lightning current will be generated at the center of the coil.The introduction of an electromagnetic field in the object optical path is equivalent to introducing an additional phase difference in the reference optical path of the interferometer.The phase distribution calculated by the computer can be used to reverse the peak value of the lightning current in real time.The result shows that the device can measure the peak value of lightning current in real time, has a simple structure, low cost, and has high measurement efficiency.
文章编号：20213009 中图分类号：TM93 文献标志码：
基金项目:上海市青年科技扬帆计划（17YF1407000）。
引用文本：
薛亮,朱岳岳.基于干涉法对雷电流峰值的实时测量研究[J].上海电力大学学报,2021,37(3):253-256.
XUE Liang,ZHU Yueyue.Research for Real-time Measurement of Lightning Current Peak Based on Interferometry[J].Journal of Shanghai University of Electric Power,2021,37(3):253-256.
薛亮,朱岳岳.基于干涉法对雷电流峰值的实时测量研究[J].上海电力大学学报,2021,37(3):253-256.
XUE Liang,ZHU Yueyue.Research for Real-time Measurement of Lightning Current Peak Based on Interferometry[J].Journal of Shanghai University of Electric Power,2021,37(3):253-256.