共 4 条
- [4] Design method of micro-impulse measuring system based on pivots for pulsed micro-thruster; [用于脉冲微推力器的枢轴式微冲量测量系统设计方法]Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering, 2019, 48Jin X.Wu W.Zhou W.Chang H.
Characteristics of electromagnetic constant force for micro-thrust measurement; [用于微推力测量的电磁恒力特性研究]
被引：0
|作者：
Chang H.
[1
,2
]
Ye J.
[1
]
Chen Y.
[2
]
Zhou W.
[1
]
机构：
[1] State Key Laboratory of Laser Propulsion & its Application, Department of Aerospace Science and Technology, Space Engineering University, Beijing
[2] China Academy of Space Technology, Beijing
来源：
关键词：
Calibration;
Electromagnetic force;
Micro-thrust measurement;
Voice coil motor;
D O I：
10.3788/IRLA201948.S117011
中图分类号：
学科分类号：
摘要：
Micro-thrust measurement device based on torsion pendulum structure is a common method for micro-thrust measurement of space micro-thruster. Aiming at the calibration problem in micro-thrust measurement, the electromagnetic force constant characteristic based on voice coil motor was studied. The composition and function of the voice coil motor and its calibration application in micro-thrust were introduced. The distribution of magnetic field in voice coil motor and the variation of electromagnetic force under the control factors of coil current, relative distance between coil and magnet were analyzed. An experimental system of constant force characteristics of micro-electromagnetic force was built. Based on the weighing method of high precision electronic balance, the precise electromagnetic force was obtained. With the criterion of electromagnetic force error less than 5%, the stable force output of voice coil motor was obtained, which will lay the foundation for the micro-thrust calibration of torsion pendulum. © 2019, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
引用
收藏
相关论文