HMX基PBX粒子速度测量的铝基组合电磁粒子速度计技术

为了精确测量奥克托今(HMX)基高聚物粘结炸药(PBX)冲击起爆过程的Lagrange粒子速度随时间的变化,采用与炸药阻抗匹配的铝基组合电磁粒子速度计实验技术,测量了3.07,4.14,7.81,8.12 GPa入射压力下某HMX基PBX炸药样品中的Lagrange粒子速度随时间的变化。结果表明:铝基组合电磁粒子速度计时间响应快,感应单元冲击响应上升时间为20 ns。不同起爆压力下获得HMX基PBX炸药样品中1~8 mm深度处的Lagrange粒子速度随时间变化响应快、干扰小。

Al-based Electromagnetic Particle Velocity Gauge Technique of Measuring the Particle Velocity of HMX-based PBX Explosives

In order to accurately measure the change in Lagrange particle velocity with time in the shock initiation process of HMX-based PBX, Al-based electromagnetic particle velocity gauge technique was used to measure the change in Lagrange particle velocity with time history in HMX-based PBX samples under the incident shock wave pressure of 3.07,4.14,7.81 GPa and 8.12 GPa. Results show that the time response of Al-based electromagnetic particle velocity gauge is very fast and the rising-up time of impact response for induction unit is less than 20 ns. The time response for the change in Lagrange particle velocity with time at 1-8 mm depth position of HMX-based PBX obtained under different incident shock wave pressures obtained is fast and the interference is small.