Temporal variation characteristics of cathode temperature in a magnetoplasmadynamic thruster  

作　　者：Cheng Zhou Peng Wu Yun-Tao Song Jin-Xing Zheng Yong Li Ge Wang Hai-Yang Liu 周成;吴鹏;宋云涛;郑金星;李永;王戈;刘海洋

机构地区：[1]University of Science and Technology of China,Hefei 230031,China [2]Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,China [3]Beijing Institute of Control Engineering,Beijing 100080,China

出　　处：《Chinese Physics B》2025年第2期334-340,共7页中国物理B(英文版)

摘　　要：The magnetoplasmadynamic thruster(MPDT) is characterized by its high specific impulse and substantial thrust density, making it a promising propulsion system for deep space exploration missions. In both laboratory experiments and practical applications, cathode ablation has emerged as a critical concern. An optical diagnostic approach based on monochromatic radiation temperature measurement, utilizing plume emission spectra and the selection of an appropriate test band, has been successfully employed. This method provides an accurate temperature distribution across the cathode surface, offering a novel testing technique for the optimization and evaluation of magnetic plasma thruster designs.

关 键 词：magnetoplasmadynamic thruster(MPDT) optical diagnostic monochromatic radiation cathode temperature 

分 类 号：V439.2[航空宇航科学与技术—航空宇航推进理论与工程]