Cusp field plasma thruster capable of improving thrust resolution ratio and working medium utilization rate

Abstract

The invention relates to a cusp field plasma thruster capable of improving the thrust resolution ratio and the working medium utilization rate, and belongs to the field of cusp field plasma thruster design. The problems that during achieving non-traction application of an existing cusp field thruster, the thrust resolution ratio is insufficient, ionization is insufficient under the work conditionof the low power, and the working medium utilization rate is too low are solved. The cusp field plasma thruster is integrally of an axis symmetry structure and comprises a main anode, a first gasket,a hollow cover plate, a shell, a first-level permanent magnet, a second gasket, a second-level permanent magnet, a wall face anode and a ceramic channel. The movement behavior of electrons in the channel is regulated and controlled in real time by adjusting the electric potential of the annular wall face anode in the ceramic channel, accordingly, the ionization process is finely adjusted, performance parameters are output, and the purpose of improving the output thrust resolution ratio of the thruster is achieved; and meanwhile, electron radial migration can be promoted, the collision probability between the electrons and atoms nearby the wall face is increased, radial expansion of the ionization area is achieved, and the purpose of improving the working medium utilization rate of the thruster is achieved.

Description

technical field [0001] The invention relates to a tangential-field plasma thruster structure capable of adjusting the internal ionization process of a thruster channel and improving thrust resolution and working fluid utilization, and belongs to the field of tangential-field plasma thruster design. Background technique [0002] The tangential field plasma thruster is a new type of electric propulsion concept emerging internationally. It relies on the tangential magnetic field configuration formed by multi-level permanent magnets to effectively confine the electrons released by the cathode. The reciprocating spiral motion at the inner magnetic tip can not only ensure the effective confinement of electrons, reduce the loss of plasma wall surface and erosion of the wall surface, but also ensure ionization and normal operation of the thruster. The current research on the thruster has found that the continuously adjustable range of its output thrust can span three orders of magni...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an adjustable The internal discharge process of the thruster

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