Electromagnetic calibration system for sub-micronewton torsional thrust stand

AEROS Conference 2017

Lam, J.K.^1 ; Koay, S.C.^1 ; Cheah, K.H.^2

School of Engineering, Taylor's University, Malaysia^1

School of Engineering and Physical Science, Heriot-Watt University, Malaysia^2

关键词: Calibration system;    Calibration techniques;    Micro-propulsion systems;    Orders of magnitude;    Steady state;    Thrust stand;    Voice coil;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/270/1/012011/pdf
DOI  :  10.1088/1757-899X/270/1/012011

来源: IOP

【 摘 要 】

It is critical for a micropropulsion system to be evaluated. Thrust stands are widely recognised as the instrument to complete such tasks. This paper presents the development of an alternative electromagnetic calibration technique for thrust stands. Utilising the commercially made voice coils and permanent magnets, the proposed system is able to generate repeatable and also consistent steady-state calibration forces at over four orders of magnitude (30 - 23000 μN). The system is then used to calibrate a custom-designed torsional thrust stand, where its inherent ability in ease of setup is well demonstrated.