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本文介绍了用正文同步扫描测量技术对聚能射流的动态参数进行测试，拍摄到非常清晰的射流头部在空气中飞行所产生的空气冲击波。运用计算机图象处理技术对拍摄的底片进行处理以后，获得了较为理想的射流图象。对底片进行测量，获得了射流在Ｘ平面内和Ｙ平面内的离轴偏差，以及射流在Ｘ、Ｙ平面内的飞行姿态，射流的累积长度作为速度的函数，射流的速度分布，射流的质量分布和动能分布，射流的断裂时间和断裂位置。
In this paper, the dynamic parameters of the condensing jet are tested by the synchro-scan technique, and the air shock waves generated by the flying heads flying in the air are captured very clearly. After using the computer image processing technology to deal with the negatives, the ideal jet image was obtained. The off-axis deviation of the jet in the X-plane and the Y-plane, and the flight attitude of the jet in the X and Y planes were obtained by measuring the film. The cumulative length of the jet as a function of velocity, jet velocity distribution, jet mass Distribution and kinetic energy distribution, jet fracture time and fracture location.