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A ground simulation device and simulation method for near-space plasma environment

A technology of plasma and adjacent space, applied in the direction of electrostatic field measurement, sustainable transportation, etc., can solve problems such as non-consideration, achieve high purity, improve overall structural relationship, and high purity

Active Publication Date: 2022-05-17
HARBIN INST OF TECH
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  • Description
  • Claims
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Problems solved by technology

However, currently publicly reported electromagnetic experiment systems for ground simulation of near-space environments generally study electromagnetic wave bands ranging from 1 to tens of GHz, and usually do not consider signals such as MHz under low-frequency conditions.

Method used

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  • A ground simulation device and simulation method for near-space plasma environment
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  • A ground simulation device and simulation method for near-space plasma environment

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Embodiment Construction

[0046] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them; based on this The embodiments in the invention, and all other embodiments obtained by persons of ordinary skill in the art without creative efforts, all belong to the scope of protection of the present invention.

[0047] A ground simulation device for near-space plasma environment:

[0048] The simulation device includes a vacuum system 1, a drawable vacuum microwave anechoic chamber system 2, a plasma beam generation system 3, an air intake system 4, a water cooling system 5, an excitation power supply system 6, a vacuum pump system 7, and a target blunt body system 8 , a microwave anechoic chamber support system 9, a plasma parameter diagnosis system 10,...

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Abstract

The present invention proposes a ground simulation device for plasma environment in adjacent space and its simulation method. The simulation device includes a vacuum system, a drawable vacuum microwave anechoic chamber system, a plasma beam generation system, an air intake system, a water cooling system, and an excitation power supply. system, vacuum pump group system, target blunt body system, microwave anechoic chamber support system, target blunt body support system, plasma parameter diagnosis system, microwave transmission measurement system, miniaturized antenna group system and central control system; Realize the electromagnetic communication measurement of the plasma environment, check the plasma parameter diagnosis through different diagnostic methods, and generate a plasma beam with high purity, adjustable plasma density and beam size in a long period of time; more Realistically simulate the near-space plasma environment, and provide microwave transmission measurement and plasma diagnosis methods required for relevant research in this environment.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic measurement, and in particular relates to a ground simulation device and a simulation method for a plasma environment in a near space. Background technique [0002] When a superb or re-entry vehicle flies in the adjacent space of 20-100km at a speed exceeding Mach 5, due to the intense friction between the head of the aerodynamic vehicle and the air, the heating effect will ionize the surrounding air and form a layer of plasma sheath on the surface of the vehicle , the plasma sheath is composed of a large number of particles, including electrons, ions, and neutral molecules, and its density usually exceeds 10 18 m -3 , High-density plasma will attenuate the electromagnetic wave signal for communication, forming an electromagnetic communication blackout phenomenon. When the radar detects a high-speed aircraft, the return signal will be reduced or even distorted due to the existence of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R29/12
CPCG01R29/12Y02T90/00
Inventor 聂秋月张仲麟林澍张晓宁鄂鹏王晓钢李立毅
Owner HARBIN INST OF TECH
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