毛细管等离子体阻抗特性实验研究  

EXPERIMENTAL STUDY OF PLASMA CHARACTERISTICS IN CAPILLARY

作　　者：刘东尧[1] 周彦煌[1] 余永刚[1] 

机构地区：[1]南京理工大学弹道研究所,南京210094

出　　处：《弹道学报》1999年第2期74-77,共4页Journal of Ballistics

摘　　要：电热或电热化学发射中以等离子体实现能量的转化，等离子体的阻抗特性决定了能量的转化效率．从实验角度研究了毛细管内电弧放电生成的等离子体的负载阻抗特性．通过测量放电过程中等离子体负载的电压、电流，分析了等离子体负载阻抗值在不同放电电压及环境背压条件下的变化趋势及其对电能输入效率的影响．实验结果表明毛细管内等离子体负载阻抗与放电电压成反比、电能输入效率与毛细管外背压成反比．The plasma characteristics in capillary of electrothermal launching was studied by experiments. The voltage time curves and current time curves over resistance were measured. The variation of plasma resistance under different discharge voltages and environment pressure was presented, and the effect of input electrical energy was described. It is proved that the plasma resistance inside the capillary is opposed to discharge voltage, the input efficiency of the electrical energy is opposed to the pressure outside the capillary.

关 键 词：电热发射 内弹道 等离子体 毛细管 放电 火炮 

分 类 号：TJ301[兵器科学与技术—火炮、自动武器与弹药工程]