炸药在空中、地面、或地下建筑物中爆炸所产生的高温、高压爆炸产物,以极高的速度向周围扩散,犹如一个超音速“活塞”,强烈地压缩相邻的介质,使其压力、密度、温度突然地升高,形成初始的冲击波。爆炸产物这个“活塞”,最初以极高的速度运动,随后迅速地减弱,直纠零为止。冲击波在空气中的传播情况如图1所示。图中 t_1、t_2……t_6,分别表示爆炸后的不同时间;r表示距离。从图中可见:空气冲击波在传播的过程中,波陈面的压力、速度等参数下降较快.在冲击波传播规律的研究中,就需要测量这些参数.目前,冲击波速度的测量,通常是用测量平均 Explosives in the air, ground or underground structures produced by the explosion of high-temperature, high-pressure explosive products to the proliferation of high-speed diffusion around, like a supersonic “piston”, strongly compress adjacent media, the pressure, Density, temperature suddenly increased, the formation of the initial shock wave. Explosive product “piston”, initially with a very high speed movement, then quickly weakened, until the zero correction so far. Shock wave propagation in the air as shown in Figure 1. Figure t_1, t_2 ...... t_6, respectively, after the explosion of different time; r said the distance. It can be seen from the figure that during the propagation of air shock wave, the pressure, velocity and other parameters of the wave face drop rapidly. In the research of shock wave propagation law, these parameters need to be measured. Currently, the shock wave velocity measurement is usually Measure the average