Two-dimensional deflection of a plasma plume exhausted from a magnetically steered radiofrequency plasma thruster
Two-dimensional deflection of a plasma plume exhausted from a magnetically steered radiofrequency plasma thruster
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DOI：
10.1063/5.0090476
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发表时间：
2022-05
影响因子：
2.2
通讯作者：
Kazunori Takahashi;Ryoji Imai
中科院分区：
文献类型：
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作者：
Kazunori Takahashi;Ryoji Imai
在射频等离子体推力器中，除了提供轴对称磁喷嘴的主螺线管之外，还通过安装四个小的附加螺线管来执行磁喷嘴的二维转向。离子饱和电流的横截面轮廓是由朗缪尔探针阵列沿径向轴沿着排列，它被旋转，以执行在羽流的横截面的空间扫描测量。测量结果表明，羽流的水平，垂直和对角偏转可以通过提供给四个额外的电流控制。由于偏转的磁性喷嘴和羽流可以提供推力矢量控制在以前的研究中所证明的，目前的结果导致在磁性喷嘴射频等离子体推力器的二维推力矢量控制。
Two-dimensional steering of a magnetic nozzle in a radio frequency plasma thruster is performed by mounting four small additional solenoids in addition to a main solenoid providing the axisymmetric magnetic nozzle. The cross-sectional profile of the ion saturation current is measured by a Langmuir probe array aligned along the radial axis, which is rotated to perform the spatial scan in the cross section of the plume. The measurements show that the horizontal, vertical, and diagonal deflections of the plume can be controlled by the electric currents supplied to the four additional solenoids. Since the deflections of the magnetic nozzle and the plume can provide the thrust vector control as demonstrated in previous studies, the present result leads a two-dimensional thrust vector control in the magnetic nozzle radio frequency plasma thruster.