MPD plume structure testing device and method based on multi-angle imaging

A structural testing, multi-angle technology, applied in the field of optical measurement, can solve the problem of difficult detection of MPD plume state, and achieve the effects of high sensitivity, reduced synchronization difficulty, and high time resolution

Pending Publication Date: 2022-06-21
BEIJING INST OF CONTROL ENG
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Problems solved by technology

[0004] In order to overcome the deficiencies in the prior art, the inventors have carried out dedicated research and provided a multi-angle imaging-based MPD plume structure testing device and method, which solves the problem that the state of the MPD plume is difficult to detect, and can be used for thrusters. Development and ground performance analysis provide critical data

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  • MPD plume structure testing device and method based on multi-angle imaging

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Embodiment Construction

[0032] The features and advantages of the present invention will become clearer and clearer through the detailed description of the present invention below.

[0033] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. While various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise indicated.

[0034] The invention provides an MPD plume structure testing device based on multi-angle imaging, such as figure 1 shown, including a vacuum chamber, a control system, a high-speed camera, a filter wheel, a fiber optic flange, multiple fiber optic image beams, multiple cabin mounts, and multiple fiber optic probes;

[0035] The vacuum chamber is used to provide a vacuum environment for the plume structure test, and is used to ac...

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Abstract

The invention provides an MPD plume structure testing device and method based on multi-angle imaging. The MPD plume structure testing device comprises a vacuum cabin, a control system, a high-speed camera, an optical filter rotating wheel, an optical fiber flange, a plurality of optical fiber image transmitting bundles, a plurality of in-cabin fixing frames and a plurality of optical fiber probes. The plasma plume is observed through multiple visual angles, and images of different visual angles are transmitted to the outside of the cabin through the optical fiber image transmitting bundle; a high-speed camera is adopted to shoot plume illuminant images of multiple visual angles at the same time; and based on an actual object-image relationship, processing the image by using a tomography reconstruction algorithm to obtain a transient three-dimensional structure of the plume illuminant and an evolution process of the structure. For the MPD and other electric thrusters, no mature technology and equipment exist at present, the problem that the plume state of the MPD is difficult to detect is creatively solved, and key data can be provided for thruster development and ground performance analysis.

Description

technical field [0001] The invention belongs to the technical field of optical measurement, and particularly relates to an MPD plume structure testing device and method based on multi-angle imaging. Background technique [0002] As a kind of electric propulsion system, the magnetic plasma dynamic thruster (MPD) adopts a completely different design idea from chemical rockets, and its thrust source mainly relies on electromagnetic force and aerodynamic force to jointly accelerate plasma generation. Compared with other electric propulsion technologies, magnetic plasma thrusters have the advantages of high thrust density and specific impulse, and have great application prospects in interstellar missions. In the existing thruster research methods, it is difficult to effectively obtain the working state of the thruster by relying on test technologies such as electrical probes, especially the spatial distribution characteristics of its discharge chamber, which requires a more intui...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/25G01N21/84G01N21/01G06T17/00
CPCG01N21/25G01N21/84G01N21/01G06T17/00G01N2021/258G01N2021/0112
Inventor 周成严浩姚兆普李飞王戈蔡坤魏延明韩道满赵博强王宝军丛云天吴延龙孙鲲应磊
Owner BEIJING INST OF CONTROL ENG
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