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Electric thruster space plume detecting device

An electric thruster and detection device technology, applied in the field of plasma measurement, can solve problems such as not being a solution, and achieve the effect of improving convenience

Active Publication Date: 2018-07-20
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many ways to eliminate the non-axial beam current density, the simplest way is the sleeve-type Faraday probe, but considering the impact of particle collisions in the narrow and long tube, the sleeve-type Faraday probe is not an ideal the solution

Method used

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  • Electric thruster space plume detecting device
  • Electric thruster space plume detecting device
  • Electric thruster space plume detecting device

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Embodiment Construction

[0039] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0040] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the pointed device or element must have a specific orientation or a ...

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Abstract

The invention provides an electric thruster space plume detecting device and belongs to the field of electric thruster plasma measurement. The electric thruster space plume detecting device comprisesa base, a Faraday probe, magnetic field coil barrels and a protective shell. Two sides of the Faraday probe are provided with magnetic fluxes arranged in the same direction, the protective shell is connected to the base, and the protective shell has an incident hole for passing the axis of an incident ion and is perpendicular to the magnetic flux directions of the magnetic field coils. The magnetic field formed by the magnetic field coils can shield non-axial incident ions passing through the incident hole such that the Faraday probe can allow spatial beam current density to be precise, and thus the measurement accuracy of the Faraday probe is improved.

Description

Technical field [0001] The invention relates to the field of plasma measurement of electric thrusters, in particular to an electric thruster space plume detection device. Background technique [0002] Electric thrusters such as ion thrusters and Hall thrusters are widely used in the attitude and orbit control of spacecraft due to their high specific impulse, long life and low system mass. Accurately obtaining the vacuum plume parameters of electric thrusters is very important for evaluating the performance of electric thrusters and spacecraft. [0003] The vacuum plume of the electric thruster is plasma, which mainly contains ions, electrons and neutral gas molecules. Obtaining the beam current density distribution in the plume is an important index to evaluate the life of the electric thruster and its plume effect, and the Faraday probe is the measurement A simple method and method for spatial ion density distribution. [0004] The exposed Faraday probe in the space plume must rec...

Claims

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Application Information

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IPC IPC(8): G01R15/24G01R19/00G01R19/08
CPCG01R15/246G01R19/0061G01R19/08
Inventor 贺碧蛟杨祖仪刘立辉袁军娅翁惠焱
Owner BEIHANG UNIV
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