A closed-loop torsional micro-thrust measurement system

被引：4

作者：

Wang, Jiabin ^{[1
,2
,3
,4
,5
]}

Long, Jianfei ^{[1
,2
,3
,4
,5
]}

Xu, Luxiang ^{[1
,2
,3
,4
,5
]}

Cong, Linxiao ^{[3
,4
]}

Guo, Ning ^{[1
]}

Yang, Wei ^{[6
]}

机构：

[1] Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, UCAS, Hangzhou 310024, Zhejiang, Peoples R China

[2] Chinese Acad Sci, Natl Space Sci Ctr, Beijing 100190, Peoples R China

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[4] UCAS, Hangzhou Inst Adv Study, Gravitat Wave Universe Taiji Lab, Hangzhou 310024, Zhejiang, Peoples R China

[5] UCAS, Hangzhou Inst Adv Study, Key Lab Gravitat Wave Precis Measurement Zhejiang, Hangzhou 310024, Zhejiang, Peoples R China

[6] Lanzhou Inst Phys, Sci & Technol Vacuum Technol & Phys Lab, Lanzhou 730000, Gansu, Peoples R China

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 2023年 / 34卷 / 12期

关键词：

micro-thrust measurement; calibration; torsional pendulum; MICROTHRUSTERS; NOISE; STAND;

D O I：

10.1088/1361-6501/acf404

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In view of the future space gravitational wave detection mission, a closed-loop monofilament torsional pendulum micro-thrust measurement system has been developed according to the requirements of the drag-free control of the satellite platform for the thrust of the micro-thruster. In this paper, we present the design of the micro-thrust measurement system, the electromagnetic force generation device, and the angular displacement differential measurement. By calibrating the electromagnetic force generation device, the functional relationship between micro-thrust and torsional angular displacement of the torsion scale is obtained, and then the micro-thrust measurement is carried out. The analysis considers the impact of the experimental device's structure and environment on the micro-thrust measurement system. The range for measuring thrust is 1-246 & mu;N, with a resolution of 0.1 & mu;N and a relative uncertainty of 1.174%. Ensure that the thrust resolution and accuracy of the micro-thruster are met according to the measurement requirements.

引用

页数：10

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