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作 者:唐敬友[1] 伍绍珍[1] 王藩侯[1] 谷岩[1] 董庆东[1]
出 处:《高压物理学报》2000年第4期285-290,共6页Chinese Journal of High Pressure Physics
摘 要:用炸药透镜加载装置观察到置于氦气与氩气中的电探针回路有不同的导通现象。基于一维冲击波和局域热平衡假设 ,分别计算了两种气体的冲击状态参数。当飞片速度在 3~ 5km s范围时 ,理论估算的氩气电离度超过 1% ,这说明氩气的电离已引起了探针回路的提前接通 ,而氦气几乎没有电离 ,对探针能起到很好的保护作用。Different signals from pin s in shock-heated gaseous helium and argon were observed.Assuming that shock wave in gases was one-dimensional and local equilibrium of thermodynamic was reache d during shock loading,the state parameters of these two gases were calculated.I t is shown that ionization degree for argon excessed 1% when the velocities of f lyers ranged from 3 to 5km/s,this ionization may cause pins shortening before fl yers impact pins.However,helium gas was hardly ionized,in which pins work normally.
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