国内外对此的研究，主要有集中参数法(我国防雷规程采用)、直接测量法及电磁场法等方法。
There are collective parameter method which is adopted in lightning protection rules, direct measurement method, electromagnetic field method and so on.
根据集中参数线路模型算法的实测距离，换算成与模型匹配的正序测量阻抗。
The measured distance of the lump parameter circuit model can be converted to the correspondingly matching positive sequence measured impedance.
通过时构件动态磁参数的测量，能够发现应力集中区，实现对构件及设备的早期诊断。
The stress raiser can be found through the measurement of dynamic magnetic parameters of components so that the diagnosis to components and equipment is implemented timely.
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