Experimental device for controlling strong dissipative plasma in black barrier area of ​​spacecraft by pulsed magnetic field

Abstract

The invention provides an experiment device for the regulation and control of a strong-dissipation plasma in a spacecraft blackout zone through a pulse magnetic field, and belongs to the field of alleviation of communication blackout of an aircraft. According to the invention, the external surface of a housing and a plasma source are located in a vacuum chamber, and the interior of the housing isin the air. A pulse magnet and a support structure are located in the housing. An end part of the housing is provided with a flange which is connected with the vacuum chamber, and a belly part of thehousing is fixed on the vacuum chamber through a support leg. The magnetic support structure consists of a rod and a support block, and the rod enables the magnetic support structure to be assembled in the housing, and controls the rotating of the support structure. The support block is used for fixing the pulse magnet, and the pulse magnet rotates with the support block for supporting. A magnet lead of the pulse magnet is led out of the support block, and is connected to a controllable power supply outside the vacuum chamber. The plasma source is placed at an end part of the vacuum chamber. The device is used for the simulation research of the alleviation of the communication blackout effect of the aircraft through the pulse magnetic field, so as to solve problems that a conventional communication blackout effect alleviation system is large in mass, is high in power consumption and is poor in communication reliability.

Description

technical field [0001] The invention relates to an experimental device for controlling a strong dissipative plasma in a black barrier region of a spacecraft by a pulsed magnetic field, and belongs to the field of alleviating the black barrier of spacecraft communication. Background technique [0002] When a spacecraft (such as a satellite, spaceship, etc.) returns to the atmosphere at high speed, its communication with the ground will usually be severely disabled or even interrupted at an altitude of 35 to 80 kilometers. This communication interruption phenomenon is called a black barrier. When the spacecraft re-enters, the speed is extremely high, and there is severe friction with the atmosphere, which generates a lot of heat. Molecules of gas and spacecraft surface materials are dissociated and ionized at high temperatures to form a plasma. The continuous accumulation of plasma forms a sheath on the surface of the spacecraft. The plasma sheath is a typical strong dissipat...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the above-mentioned problems in the prior art, and then provide an experimental device for controlling the strong dissipative plasma in the black barrier area of ​​the spacecraft by a pulsed magnetic field, which is used for simulating and studying the effect of the pulsed magnetic field on alleviating the communication blackout of the spacecraft , to provide a technical basis for the use of pulsed magnetic fields to alleviate spacecraft communication blackouts, and to solve the problems of existing communication blackout mitigation systems with large mass, high power consumption, and poor communication reliability

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