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首页> 外文会议>5th International Conference on Recent Advances in Space Technologies >Impact of discharge chamber geometry on characteristics of a low-power Hall thruster
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Impact of discharge chamber geometry on characteristics of a low-power Hall thruster

机译：放电室几何形状对低功率霍尔推进器特性的影响

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A 200 W permanent-magnet Hall thruster - named PPI for “Petit Propulseur Innovant” - has been operated with xenon for three values of the channel width. The mean channel diameter, the channel length and the magnetic field topology stay fixed. Series of experiments have been carried out for each geometry over a broad set of propellant mass flow rates and applied voltages to investigate the impact of a channel width variation on discharge properties. The ion current was measured in the plume far field by means of a planar Faraday probe. The equilibrium temperature of inner and outer Al2O3 channel walls was determined by means of calibrated thermal imaging. Finally, the ion velocity was measured by laser-induced fluorescence spectroscopy at 834 nm along the channel centerline.
机译：一台200 W永磁霍尔推力器（被称为“ Petit Propulseur Innovant”，称为PPI）已与氙气一起用于通道宽度的三个值。平均通道直径，通道长度和磁场拓扑保持固定。已经针对各种几何形状在一系列推进剂质量流率和施加的电压上进行了一系列实验，以研究通道宽度变化对放电性能的影响。通过平面法拉第探针在羽状远场中测量离子电流。通过校准的热成像方法确定了内部和外部Al 2 O 3 通道壁的平衡温度。最后，通过激光诱导荧光光谱法在沿着通道中心线的834 nm处测量离子速度。

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