一种基于动态补偿技术的微小稳态推力还原方法

doi:10.7527/S1000-6893.2018.21885

Abstract

Abstract: New micro thrusters are vital force of micro/nano satellites in the future. Thrust measurement is very important support in the design, development and application of micro thrusters. In the design stage, the steady-state force working time of the thruster is sometimes difficult to match the setting time of the mechanical and direct measurement system. Therefore, the steady-state force cannot be obtained by the steady-state response. A reduction method for micro steady-state thrust is proposed based on the dynamic compensation technique. The relation between the working time and value of the steady-state thrust and the steady-state response of the measurement is analyzed. The design principles of the compensation filter and the steady-state thrust reduction steps are provided. Experiments are carried out to verify the method. The results show that when the working time of the steady-state thrust is longer than 0.25 times of the natural period of the measurement system and shorter than the setting time of the measurement system, the final output of the equivalent measurement system using the compensation filter can reach a steady state, and the range of the steady-state thrust can be obtained through the final steady-state output.

Key words: measurement, micro thruster, thrust, horizontal torsional pendulum, dynamic compensation

CLC Number:

V439
TN249

ZHOU Weijing, HONG Yanji, YE Jifei, LI Nanlei, CHANG Hao. A reduction method for micro steady-state thrust based on dynamic compensation technique[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2018, 39(7): 121885-121885.

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A reduction method for micro steady-state thrust based on dynamic compensation technique

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