CAJ | 학술논문

基于光谱方法和羽流探针诊断方法，研究分析了氢组分压力对霍尔推力器束流聚焦特性和振荡特性的影响。研究结果表明，随着罐内氢组分压力的提高，通道内氢的特征谱线强度增强，相比 pH=0Pa， pH=0.04Pa下最大HI=652.6nm相对谱线强度增加了8~9倍。氢组分向通道内的返流影响通道内的工质电离和离子加速过程，进而导致推力器束流特性变差，且伴随着低频振荡增大。当 p H=0.04Pa时，羽流发散半角为41.5°，相比pH=0Pa条件下增加了24.5°。
기우광보방법화우류탐침진단방법，연구분석료경조분압력대곽이추력기속류취초특성화진탕특성적영향。연구결과표명，수착관내경조분압력적제고，통도내경적특정보선강도증강，상비 pH=0Pa， pH=0.04Pa하최대HI=652.6nm상대보선강도증가료8~9배。경조분향통도내적반류영향통도내적공질전리화리자가속과정，진이도치추력기속류특성변차，차반수착저빈진탕증대。당 p H=0.04Pa시，우류발산반각위41.5°，상비pH=0Pa조건하증가료24.5°。
The effects of the hydrogen component pressure on the beam focusing characteristic and oscillat?ing characteristic of the thrusters are studied and analyzed based on the methods of spectrum diagnosis and probe diagnosis. The analysis indicates that with the increasing of the hydrogen partial pressure in the vacuum tank ,the strength of the characteristic spectral line of hydrogen in the channel increased. The relative radiation intensity of HI=652.6nm with the condition of pH=0.04Pa has been raised 8~9 times as compared with the condition of pH=0Pa. The backflow of the hydrogen component towards the inside of the channel affects the ionization and ion ac?celeration progresses,and thus causing the deviation of the beam focusing characteristic and increased low fre?quency oscillation. In the condition of pH=0.04Pa,the plume divergence half-angle is 41.5°,which increases by 24.5° compared with the condition of p H=0Pa.