An Equivalent Thrust Measuring Method of the Cusped Field Thruster Based on Probe Diagnosis
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摘要:
无拖曳卫星任务对会切场推力器（HEMPT）性能有更为精细的技术指标要求，针对目前的三丝扭摆测量系统由于技术限制不能快速精确地反应这些指标，从等离子体原理出发，推导了一种通过探针所测的数据计算推力的等效方法，并经过实验测量进行了验证。测量结果表明：该方法可以在一定范围内较为精确地计算推力，并且为微牛级推力测量以及推力分辨率测量提供了一种行之有效的参考方法。
Abstract:Recently，the drag-free satellite mission needs more precise performance for the cusped field thruster （HEMPT），such as precise thrust resolution and accurate measurement of thrust noise. However，due to the technical limitations，the current three-wire torsion pendulum measurement system cannot quickly and accurately reflect these indicators. In this paper，an equivalent method for calculating the thrust from the data measured by the probe is deduced，and is verified by experimental measurements. The results show that the proposed method can calculate the thrust precisely in a certain range. So the method provides a reference for the measurement of the mic-Newton thrust and the thrust resolution.
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Key words:
- HEMPT/
- probe diagnosis/
- thrust measurement
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[1] Liu H,Chen P B,Sun Q Q,et al. Design of a cusped field thruster for drag-free flight[J]. Acta Astronautica,2016,126:35-39. [2] Keller A,Köhler P,Gärtner W,et al. Feasibility of a down-scaled HEMP-thruster[D]. Germany:Justus-Liebig-University,2014. [3] 陈蓬勃. 小功率会切场等离子体推力器变截面通道设计及实验研究[D]. 哈尔滨:哈尔滨工业大学,2016. Chen P B. The design and experimental study of variable cross-section channel HEMPT[D]. Harbin:Harbin Institute of Technology,2016. [4] Matlock T S. An exploration of prominent cusped-field thruster phenomena:the hollow conical plume and anode current bifurcation[D]. USA:Massachusetts Institute of Technology,2012. [5] Gildea S R,Martinez-Sanchez M,Nakles M R,et al. Experimentally characterizing the plume of a divergent cusped-field thruster[C]//31st International Electric Propulsion Conference (IEPC 09). Michigan:Air Force Research Laboratory,2009. [6] 杨福全,赵以德,李娟,等. 主带小行星采样返回任务中的离子电推进应用方案[J]. 深空探测学报,2015,2(2):168-173. Yang F Q,Zhao Y D,Li J,et al. Application scheme of ion electric propulsion system for main-belt asteroid sample and return mission[J]. Journal of Deep Space Exploration,2015,2(2):168-173. [7] 郑茂繁,耿海,梁凯,等. 用于小行星探测的离子推力器技术研究[J]. 深空探测学报,2015,2(3):236-240. Zheng M F,Geng H,Liang K,et al. Research on ion thruster technology for asteroid exploration[J]. Journal of Deep Space Exploration,2015,2(3):236-240. -
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