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Abstract

Engineering

The Traceable Calibration of Thrust Stand by Electrostatic Force

Published: March 1st, 2022

DOI:

10.3791/63465

1Shanghai Engineering Center for Microsatellites, 2Innovation Academy for Microsatellites, Chinese Academy of Sciences, 3State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University

Abstract

Micro thrusters have important applications in low-frequency gravitational wave detection, satellite formation, and inter-satellite laser communication, so it is necessary to accurately measure the thrust of micro thrusters with traceability. A thrust stand is a widely used micro thrust measuring device with the advantages of high resolution and large load. Traceability calibration of mechanical characteristics of thrust stand is an essential prerequisite to ensure traceability measurement of thrust. In this study, a parallel plate capacitor was used to calibrate the thrust stand by generating a micronewton electrostatic force, which could be traced to the International System of Units (SI). The constant capacitance gradient range was obtained through simulation and theoretical calculation. Moreover, the electrostatic force could be changed by standard voltage with the advantages of simple principle, instantaneous trigger, and traceability. The device could be used for traceability calibration of micro newton thrust stand due to simple assembly and short traceability path.

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Keywords Micro Thruster

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