导弹与航天运载技术
導彈與航天運載技術
도탄여항천운재기술
Missiles and Space Vehicles
2015年
5期
77-82
,共6页
刘鑫%邬润辉%刘佳琪%任爱民%白文浩
劉鑫%鄔潤輝%劉佳琪%任愛民%白文浩
류흠%오윤휘%류가기%임애민%백문호
非均匀等离子体%电磁波%反射系数%透射系数%试验验证
非均勻等離子體%電磁波%反射繫數%透射繫數%試驗驗證
비균균등리자체%전자파%반사계수%투사계수%시험험증
Inhomogeneous plasma%Electromagnetic wave%Reflection coefficient%Transmission coefficient%Test
以低电压、大电流直流放电产生非均匀等离子体为研究对象,在电磁波在等离子体中传播特性、非均匀等离子体对电磁波的反射和透射等理论模型指导下,在稀薄气体环境中进行了空间尺度为 1.5m、电子密度变化范围为 1×1010cm-3~5×1011cm-3的非均匀等离子体对C波段电磁波的反射和透射试验,通过相近状态下理论仿真结果与试验结果的对比分析,给出了 4 种典型电子密度及其分布状态对电磁波反射和透射特性变化规律.通过试验验证了等离子体与电磁波相互作用机理用于分析稀薄气体环境下直流放电非均匀等离子体中电磁波传播特性的适用性.
以低電壓、大電流直流放電產生非均勻等離子體為研究對象,在電磁波在等離子體中傳播特性、非均勻等離子體對電磁波的反射和透射等理論模型指導下,在稀薄氣體環境中進行瞭空間呎度為 1.5m、電子密度變化範圍為 1×1010cm-3~5×1011cm-3的非均勻等離子體對C波段電磁波的反射和透射試驗,通過相近狀態下理論倣真結果與試驗結果的對比分析,給齣瞭 4 種典型電子密度及其分佈狀態對電磁波反射和透射特性變化規律.通過試驗驗證瞭等離子體與電磁波相互作用機理用于分析稀薄氣體環境下直流放電非均勻等離子體中電磁波傳播特性的適用性.
이저전압、대전류직류방전산생비균균등리자체위연구대상,재전자파재등리자체중전파특성、비균균등리자체대전자파적반사화투사등이론모형지도하,재희박기체배경중진행료공간척도위 1.5m、전자밀도변화범위위 1×1010cm-3~5×1011cm-3적비균균등리자체대C파단전자파적반사화투사시험,통과상근상태하이론방진결과여시험결과적대비분석,급출료 4 충전형전자밀도급기분포상태대전자파반사화투사특성변화규률.통과시험험증료등리자체여전자파상호작용궤리용우분석희박기체배경하직류방전비균균등리자체중전자파전파특성적괄용성.
In this paper, based on the inhomogeneous plasma which is produced by DC discharge (low voltage, high current), guided by the theory of electromagnetic wave reflection and transmission characteristics in non-uniform plasma, the reflection and transmission test of C band electromagnetic in the rarefied gas environment in inhomogeneous plasma was completed and the plasma was 1.5m, the electron density was from 1×1010cm-3 to 5×1011cm-3. Through comparing the theory simulation result and test result in the similar status, four kinds of changing principle that how electrical density and distribution status effect electromagnetic reflection and transmission features were proposed, The test proves that the interaction mechanism between the plasma and the electromagnetic wave also applied to analyze inhomogeneous plasma which was generated by DC discharge in the rarefied gas environment interacted with electromagnetic wave.