在其他实验参量不变的情况下，改变主脉冲电流的波形，比较了激光尖峰与背景光的相对位置。
Changing the wave form of the main current while other experimental parameters being unchanged, the laser spike and the position of background light were contrasted.
讨论了获得脉冲电流的原理。实测波形显示，输出的矩形波脉冲电流非常精确，且带有前沿尖峰，有利于电弧的稳定。
The wave shape measured indicates that the converter outputs the exact square pulse current with a peak in each front edge of pulse which is the benefit for arc stabilization.
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