用组合式电磁粒子速度计研究JOB-9003炸药的冲击起爆过程

Electromagnetic gauge measurementsof shock initiating JOB-9003 explosive

用组合式电磁粒子速度计研究了JOB-9003炸药在不同冲击压力下的起爆过程。粒子速度计所测波形较好地反映出了炸药中冲击波向爆轰波的转变过程。对冲击波跟踪器所测波形的分析表明,冲击压力为4.9 GPa时,JOB-9003炸药冲击转爆轰的距离和时间分别为xD=6.06 mm和tD=1.13μs,当冲击压力增加到5.8 GPa时,转爆轰的距离和时间减小为xD=5.66 mm和tD=1.01μs。

An embedded electromagnetic particle-velocity gauge was used to measure the shock initiation behavior in JOB-9003 explosive under different shock pressures. The particle velocity history profiles can fairly decribe the change processes from the shock waves to the detonation waves in the explosive. The output signal from a shock tracker shows that at the shock pressures of 4.9 GPa and 5.8 GPa, the critical times and distances for the onset of detonation of JOB-9003 explosive are respectively 6.06 mm and 1.13μs , 5.66 mm and 1.01μs.