高压电器2017，Vol.53Issue(3)：47-50,4.DOI:10.13296/j.1001-1609.hva.2017.03.007
激光触发真空开关的微电流研究
Research on the Micro-current of the Laser Triggered Vacuum Switch
摘要
Abstract
The triggering characteristics of LTVS (laser triggered vacuum switch,LTVS)were analyzed in the view of micro-current.A micro-current test circuit was designed,and a constant voltage,which is unable to turn on the switch,was applied on the switch to analyze the development of initial plasma within the switch before it turned on.The experiment revealed that under the effect of dual-pulse laser,the micro-current of flat-type LTVS increased with the increase in the applied voltage,and continuous twice irradiation of pulsed laser on the target material of the fiat-type LTVS produced more initial plasma,so that the conduction time delay and jitter time delay of the switch reached nanosecond level.The result shows the dual-pulse laser trigger mode is beneficial to reduction of the triggering energy required for conduction of the switch,and the mode also contributes to the miniaturization of the overall switch device and its practical design.关键词
激光触发真空开关(LTVS)/微电流/初始等离子体Key words
laser triggered vacuum switch(LTVS)/micro-current/primary plasma引用本文复制引用
黄祖成,向彬,曹祥薇,宗云,张予,毛晓坡..激光触发真空开关的微电流研究[J].高压电器,2017,53(3):47-50,4.基金项目
国家自然科学基金项目(51377071),中央高校基本科研业务费资助项目(HUST:2010JC018).Project Supported by the National Natural Science Foundation of China(51377071),the Fundamental Research Funds for the Central Universities Program(HUST:2010JC018). （51377071）
