Near space plasma sheath environment ground simulation device and diagnosis method

A plasma and ground simulation technology, applied in measuring devices, instruments, measuring electricity and other directions, can solve the problem of no consideration, and achieve the effect of high density, wide parameter range and high plasma density

Active Publication Date: 2022-01-11
HARBIN INST OF TECH
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  • Application Information

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Problems solved by technology

However, the currently reported electromagnetic experiment system for ground simulation in the near space environment generally studies

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  • Near space plasma sheath environment ground simulation device and diagnosis method
  • Near space plasma sheath environment ground simulation device and diagnosis method
  • Near space plasma sheath environment ground simulation device and diagnosis method

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Embodiment Construction

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0038] see Figure 1-5 Describe this embodiment, a ground simulation device for plasma sheath environment in adjacent space, which includes a vacuum system 1, a microwave darkroom system 2, a plasma beam generation system 3, a target blunt body system 4, a plasma diagnosis system 5, a microwave Transmission measurement system 6, first multi-frequency antenna group system 7, second multi-frequency antenna group system 8, vibrator antenna group system 9 and target blunt body movement support system 10, the plasma beam generation system 3 and vacuum system 1 One end is connected, the target blunt body system 4 is set on the target blunt body motion support system 10 inside the microwave anechoic chamber system 2, the target blunt body system 4 is at the same height as the plasma be...

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Abstract

The invention provides a high-density, strong-collision, sub-wavelength and non-uniform near space plasma sheath ground simulation device and a microwave transmission measurement and plasma diagnosis method, and belongs to the technical field of near space environment ground simulation and diagnosis. The problem that an existing near space high-speed target plasma sheath ground simulation technology for a ground experiment cannot achieve real simulation is solved. According to the simulation device, a plasma beam generation system is connected with one end of a vacuum system, a target bluff body system is arranged on a target bluff body movement supporting system in a microwave darkroom system, and the target bluff body system and the plasma beam generation system are equal in height and concentrically aligned. The target bluff body movement supporting system is arranged on a guide rail in the microwave darkroom system, and the plasma diagnosis system comprises a hydrogen cyanide laser interferometer, a probe diagnosis mechanism and a spectrum diagnosis mechanism. The device is mainly used for near space plasma sheath ground simulation and electromagnetic diagnosis.

Description

technical field [0001] The invention belongs to the technical field of near-space environment ground simulation and diagnosis, and in particular relates to a ground simulation device and a diagnosis method for a high-speed target plasma sheath environment near space. Background technique [0002] When a superb or reentry vehicle flies in the adjacent space (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 on the surface of the vehicle Sheath, 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 e...

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Application Information

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IPC IPC(8): G01R31/00G01R29/08
CPCG01R31/00G01R29/0871
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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