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提出了一种速度衰减系数α可预先确定的测量全预制和半预制破片群初速ｖ＿０的电探针方法。在效应靶背面竖直方向上依次布置ｎ根条状铜箔电探针，测量ｎ个破片飞行ｘ距离经历的时间ｔ，根据破片速度衰减公式确定ｎ个破片的ｖ＿０，测量误差不超过３％。应用最小二乘法原理，将实验测定的全预制破片群初速拟合成沿战斗部轴向分布，实验拟合线与用文献［１］报导的计算方法确定的结果基本一致。
A method of electric probe based on the velocity attenuation coefficient α for predicting the initial velocities v_0 of prefabricated and semi-prefabricated fragments was proposed. N strips of copper foil electric probes are sequentially arranged on the back of the target in the vertical direction to measure the time t that the n pieces of flies fly through the x distance and the v_0 of the n pieces are determined according to the attenuation formula of the fragments, . The principle of least squares method was used to fit the initial prefabricated rupture volume to the axial distribution along the warhead. The experimental fitting line was basically the same as that determined by the calculation method reported in [1].