The traditional net target could only measure the velocity of the first bullet or fragment. To solve the problem, a new measuring method based on resistor-net target was proposed in this paper. The series struchture of traditional net was replaced by a parallel one with a resistor in series with each net wire. When the fragments passed through the target, the interruption of any net wire would cause the total resistance change. According to the changes of two targets' total resistance, the velocity of various fragments could be measured and the sizesof which could be calculated. Simulations and experiments results showed that the velocity and size range of every fragment can be calculated and analyzed according to the acquired waveforms and the parameters of the resistor-net target.%针对网靶只能测量首个弹丸或破片速度的问题,提出了电阻网靶测量方法.该方法的实质是将普通网靶的串联网线改为并联,并且给每条网线串联一个电阻.当破片穿过靶面时,任一网线被打断都会引起总电阻变化,根据两靶总电阻变化的时间间隔和幅度大小,可以测出多个破片的速度、估计破片大小.仿真与测试表明:根据数据采集显示装置记录的波形以及电阻网靶的参数,可计算出单个破片的飞行速度和尺寸范围,从而可以进一步分析破片群的飞行速度、速度分布和尺寸分布.
展开▼