Demonstrating a magnetic steering of the thrust imparted by the magnetic nozzle radiofrequency plasma thruster
Demonstrating a magnetic steering of the thrust imparted by the magnetic nozzle radiofrequency plasma thruster
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DOI：
10.1063/5.0058202
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发表时间：
2021-06
影响因子：
4
通讯作者：
Ryoji Imai;Kazunori Takahashi
中科院分区：
文献类型：
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作者：
Ryoji Imai;Kazunori Takahashi
轴向和水平分量的推力所赋予的磁性喷嘴射频等离子体推力器测量通过连接到一个钟摆平衡，其中两个水平的附加安装在附近的推力器出口转向的磁性喷嘴。该推进器在氩气中以500 W的射频功率工作。朗缪尔探针的离子饱和电流的二维剖面图显示等离子体羽流沿磁场线沿着偏转。对于所有水平螺线管电流，测得的轴向推力约为1.6 mN，而当增加水平螺线管电流时，水平推力从0增加到0.2 mN。这些结果表明，推力矢量可以连续变化的角度内的几个度，演示了推力矢量控制的磁转向。
Axial and horizontal components of the thrust imparted by a magnetic nozzle radio frequency plasma thruster are measured by attaching the thruster to a pendulum balance, where two horizontal solenoids are additionally mounted near the thruster exit to steer the magnetic nozzle. The thruster is operated at the rf power of 500 W in argon. The two-dimensional profiles of the ion saturation current of a Langmuir probe show the plasma plume deflected along the magnetic field lines. The measured axial thrust is about 1.6 mN for all the horizontal solenoid current, while the horizontal thrust increases from 0 to 0.2 mN when increasing the horizontal solenoid current. These results indicate that the thrust vector can be continuously changed within the angle of several degrees, demonstrating the thrust vector control by the magnetic steering.