RDX基含铝炸药爆炸电磁辐射信号特性实验研究

Experimental Study on Characteristics of Explosive Electromagnetic Radiation Signals of RDX Based Aluminized Explosives

为了得到黑索今(RDX)以及RDX基含铝炸药爆炸过程中的电磁辐射信号特征,采用宽带天线测量系统对炸药爆炸电磁辐射信号进行了实验研究。结果表明,RDX以及RDX基含铝炸药爆炸电磁辐射信号发生时刻与起爆时刻相比有明显延迟。距爆心2 m处,爆炸电磁辐射信号强度在1.87~15.20 V·m^-1范围内,随距离的增加而衰减。当含铝量从0~20%时,爆炸电磁辐射信号强度随含铝量的增加而增强;当含铝量从20%~30%时,爆炸电磁辐射信号强度随含铝量的增加而降低。RDX及RDX基含铝炸药爆炸电磁辐射信号频率主要分布在500 MHz以内,铝的添加会改变爆炸电磁辐射信号的频率成分,不同含铝量炸药爆炸电磁辐射信号频谱不同。

In order to obtain the characteristics of electromagnetic radiation signals during the explosion of RDX and RDX-based aluminized explosives,the broadband antenna measurement system is utilized in explosion experiments.The experimental results show that the electromagnetic radiation signal of the RDX and RDX-based aluminized explosives has a significant delay compared with the detonation time.At 2 m distance,the field strength of the explosive electromagnetic radiation signal is 1.8-15.2 V·m^-1 and decreases with the increase in the explosive distance.When the aluminum content is from 0% to 20%,the field strength of the electromagnetic radiation signal generated by the explosion increases with the increase of aluminum content.When the aluminum content is from 20% to 30%,the field strength of the electromagnetic radiation signal generated by the explosion decreases as the aluminum content increases.The frequency of electromagnetic radiation signals generated by the explosion of RDX and RDX based aluminized explosives is mainly distributed within 500 MHz.The addition of aluminum changes the frequency component of the electromagnetic radiation signal,and the spectrum of the electromagnetic radiation signal of different aluminized explosives is different.