20 cm離子推力器電磁輻射試驗(yàn)研究
Test of electromagnetic emission radiated from 20 cm ion thruster
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摘要: 離子推力器工作時會產(chǎn)生對外電磁輻射，因此離子電推進(jìn)應(yīng)用于航天器時存在電磁兼容性問題。為初步了解離子推力器工作產(chǎn)生的電磁輻射特性，利用經(jīng)改造后的地面專用試驗(yàn)系統(tǒng)進(jìn)行了20 cm離子推力器電磁輻射測試試驗(yàn)。文章介紹了20 cm離子推力器電磁輻射的試驗(yàn)方案，采用兩種形式進(jìn)行：推力器電場輻射發(fā)射試驗(yàn)，測試頻段為10 kHz～5 GHz；推力器瞬態(tài)電場輻射發(fā)射試驗(yàn)，測試頻段為100 kHz～5 GHz。試驗(yàn)結(jié)果表明：在離子電推進(jìn)穩(wěn)態(tài)工作過程和幾個瞬態(tài)工況點(diǎn)，未發(fā)生電磁干擾現(xiàn)象。Abstract: The ion thruster radiates electromagnetic emissions during its operation and brings possibly about electromagnetic compatibility issues. The electromagnetic emission tests were performed on ground facilities, in order to understand the electromagnetic emission characteristics of the 20 cm ion thruster. The program, the procedure and the measurement results of this test are presented in this paper.
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