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提出了一种简便实用的尾焰电压检测方法，可直接测量建立于工件与测量板之间的尾焰电压信号。该信号能准确反映熔池小孔的状态。
A simple and practical tail voltage detection method is proposed, which can directly measure the tail voltage signal established between the workpiece and the measurement board. The signal can accurately reflect the state of the molten pool holes.