红外热成像技术在云团爆炸测温中的应用

利用红外热成像技术研究了具有云团爆炸性质的燃料空气炸药(FAE)的爆炸温度场.实验测试了两发液体FAE和一发固体FAE试验弹的爆炸温度参数,得到了爆炸火球温度的时空分布,并根据火球温度分布分析了燃料的抛撒情况.结果表明,在装药量相同的情况下,固体FAE和液体FAE的爆炸火球表面温度分别比TNT高22.3%和6.2%,1000℃以上高温持续时间是TNT的1.95和1.23倍；液体燃料爆炸形成的火球覆盖面积比固体云爆剂大；预制刻槽的薄壁弹体更利于燃料的抛撒和分散.

Application of Infrared Thermo-imaging Technology in Temperature Measurement of Cloud Explosion

Cloud explosion is the main characteristic of fuel-air explosive(FAE). The blast temperature parameters of two FAE testing bombs with liquid fuel and one with solid FAE were measured by infrared thermo-imaging technology. The temperature distribution of blast fireball at different times was obtained and the fuel casting phenomena were analyzed. Experimental results show that the surface temperature of blast fireball of FAE with liquid or solid fuel are 22.3% or 6.2% higher than that of TNT respectively when their charge quantities are the same. The high temperature durations of two FAE bombs are 1.95 and 1.23 times large than that of TNT, respectively. The fireball overcast area of liquid fuel is bigger than that of solid one. The thin shell treated with charactering grooves is beneficial to the fuel casting and dispersal.