Verification of a Novel Electrospray Thruster with Magnetic Ionic liquid Propellant
2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE)(2021)
摘要
A new concept of magnetic ionic liquid electrospray thruster(ILET) is proposed in this paper. The thruster uses a lower working voltage with the action of an applied magnetic field, and is named as low-voltage ionic liquid electrospray thruster(LV-ILET). A jet needle is used as the emitter and the Helmholtz coil is used to apply an external magnetic field to demonstrate the working principle of the LV-ILET. The experimental results show that the stable working voltage could be reduced to 87% of that in absence of an applied magnetic field. Under the same working voltage, the applied magnetic field can significantly increase the emission current of LV-ILET. Due to the linear relationship between the thrust and the emission current, LV-ILET can either reduce the working voltage or increase the thrust with the help of the applied magnetic field and the magnetization characteristics of the propellant.
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关键词
magnetic ionic liquid,electrospray thruster,applied magnetic field,low-voltage
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