Vortex resonance multistage cusped field micro-newton-scale ion propulsion device

Abstract

The invention provides a vortex resonance multistage cusped field micro-newton-scale ion propulsion device, belongs to the field of plasma propulsion, and particularly relates to a vortex resonance multistage cusped field micro-newton-scale ion propulsion device. The device solves the problems that an existing micro-newton-scale thruster cannot meet the requirements for large-range adjustability of thrust, high-precision thrust control and the like in major tasks such as space gravitational wave detection and space gravitational field detection are solved. The device comprises a discharge cavity, a screen grid and an accelerating grid, wherein the screen grid and the accelerating grid are fixed to the open end of the discharge cavity, a quartz guard plate is coaxially and fixedly arrangedinside the discharge cavity, the discharge cavity comprises an annular wall plate and a bottom plate, the bottom plate is fixedly arranged at one end of the annular wall plate, a plurality of incensecoil-shaped antennas are arranged on the end face, close to the quartz guard plate, of the bottom plate, the incense coil-shaped antennas form a periodic topological structure array on the bottom plate, and multistage annular permanent magnets are arranged on the side wall of the annular wall plate. The device is mainly used for propulsion of plasmas.

Description

technical field [0001] The invention belongs to the field of plasma propulsion, and in particular relates to a micro-level ion propulsion device with vortex resonance multi-stage tangent fields. Background technique [0002] With the development of space science, the demand for ultra-stable and ultra-quiet platforms is increasing day by day for the new generation of space missions, such as gravitational wave detection missions and gravity field measurement missions. A propulsion device with a thrust accuracy of 0.1 micronewtons. The LISA, "Tai Chi Project", "Tianqin Project" and "Ali Experimental Project" carried out in recent years are the most important scientific projects in this field. However, in the existing alternatives of the micro-North thruster, the high-precision control of the thruster, the continuous adjustment of the thrust range, and the long-life on-orbit work are all optimized: for example, the Kaufmann-type ion thruster has electrode erosion, radio frequen...

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Problems solved by technology

However, in the existing alternatives of the micro-North thruster, the high-precision control of the thruster, the continuous adjustment of the thrust range, and the long-life on-orbit work are all optimized: for example, the Kaufmann-type ion thruster has electrode erosion, radio frequency ion thruster, etc. Due to the limitation of the heating mechanism, the thruster cannot work stably under extremely low air pressure, and it is difficult to adjust the thrust of the electron cyclotron resonance ion thruster in a wide range

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