高电压技术2017，Vol.43Issue(9)：3085-3092,8.DOI:10.13336/j.1003-6520.hve.20170831042
空气中不同金属丝电爆炸的光辐射特性
Optical Emission Characteristics of Electrical Explosion of Different Wires in Air
摘要
Abstract
Optical emission during wire explosion process contains much information.The characteristics of electrical explosion of AI,Ti,Fe,Cu,Mo,Ag,Ta,and W wires as well as fine graphite rods were studied under sub-microsecond and microsecond time-scale pulsed currents in air,respectively.Moreover,a test platform containing a diagnostic system was established.With a storage energy of 500 J,wires and rods with a length of 1 cm and a diameter of 200 μm were exploded by pulsed currents with rise rates of ～45 A/ns and ～5 A/ns,respectively.Meanwhile,voltage,current,light intensity,and time-integrated spectrum were recorded.The experimental results reveal that sizeable optical emission starts from voltage collapse and lasts for more than 300 μs.In general,Ti wire load has the strongest optical emission.Non-refractory metals such as Al,Cu,and Ag possess similar optical emission characteristics including light intensity and spectrum.Refractory metals such as Mo,Ta,and W,on the other side,possess similar optical emission characteristics.Although carbon rods have similar light intensity with refractory metals,their spectra resemble those of non-refractory metals.It could be also inferred from the spectra that optical radiation energy between 250 nm to 380 nm is strong,occupying 42.9％ for a Cu wire load.Optical emission varies for different loads,indicating the plasma parameters are also different.关键词
金属丝电爆炸/脉冲功率技术/等离子体/光辐射/光谱Key words
electrical explosion of metal wire/pulsed power technology/plasmas/optical emission/spectrum引用本文复制引用
韩若愚,吴佳玮,丁卫东,姚伟博,张永民,邱爱慈..空气中不同金属丝电爆炸的光辐射特性[J].高电压技术,2017,43(9):3085-3092,8.基金项目
强脉冲辐射环境模拟与效应国家重点实验室开放课题(SKLIPR1509).Project supported by State Key Laboratory of Intense Pulsed Radiation Simulation and Effect (SKLIPR1509). （SKLIPR1509）
