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主要介绍轨道炮利用三级ＰＦＮ作电源的实验结果，并将其与以前的单次电源投入的实验结果进行比较．虽然该方法能有效地改善负载电流波型，使脉冲增宽，但是由于弧压升高将会引起湍流、导致等离子不稳定和系统效率降低等问题．
This paper mainly introduces the experimental results of the rail gun using the three-stage PFN as the power source and compares it with the experimental results of the previous single-power input. Although this method can effectively improve the load current waveform and broaden the pulse, it will cause turbulence due to the increase of arc voltage, leading to instability of plasma and reduction of system efficiency.