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Semicircular rake-shaped ion thruster beam divergence angle test device

A technology of ion thrusters and test devices, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of low reliability of test data and few measuring points, and achieve the effect of more measuring points, reduced quantity and lower cost

Active Publication Date: 2018-03-02
LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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Problems solved by technology

[0003] The disadvantage of this method is that only a single Faraday probe is installed on the scanning arm, there are few measuring points during scanning, and the reliability of the test data is low

Method used

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  • Semicircular rake-shaped ion thruster beam divergence angle test device
  • Semicircular rake-shaped ion thruster beam divergence angle test device

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Embodiment Construction

[0022] The present invention will be described in detail below with reference to the drawings and embodiments.

[0023] The invention provides a beam divergence angle test device for a semicircular rake ion thruster. The basic principle is to design a semicircular Faraday probe assembly shaped like a semicircular rake, and the semicircular Faraday probe assembly passes through the rotating assembly. The drive assembly is connected, and the drive assembly drives the semicircular Faraday probe assembly to rotate to scan the plume area of ​​the ion thruster. The measurement and control component is connected to the Faraday probe and the driving component to realize the control of the driving component and the data acquisition of the Faraday probe and the calculation of the beam divergence angle.

[0024] figure 1 It is a block diagram of an embodiment of the beam divergence angle test device of the semicircular rake ion thruster of the present invention. Such as figure 1 As shown, it...

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Abstract

The invention discloses a semicircular rake-shaped ion thruster beam divergence angle test device. A Faraday probe is fixed on a semicircular rake, the semicircular rake is a semi-circular unenclosedarc structure and is connected with a driving assembly through a rotation assembly, under the driving action of the driving assembly, a semi-circular framework can rotate around a semi-circular centerline of the framework, a plume area is scanned, beam density of different positions of the ion thruster plume area can be tested through a test control assembly, an ion thruster beam divergence anglecan be acquired through calculation. The device is advantaged in that beam density of the multiple positions of the plume area can be simultaneously tested, multiple measurement points are distributed, test data reliability is high, and the device is quite suitable for measuring beam divergence angles of electrical propulsion thrusters such as ion thrusters and Hall thrusters.

Description

Technical field [0001] The invention relates to the technical field of thruster measurement, in particular to a beam divergence angle test device for a semicircular rake-shaped ion thruster. Background technique [0002] In the document "Effect of discharge voltage on plume divergence of a highspecific impulse Hall thruster.AIAA 2005-4403", a test method for the beam divergence angle of Hall thruster is introduced. This method uses a Faraday probe mounted on a scanning arm to scan a 180° semicircle in the plume area, and then uses the obtained ion current angular spatial distribution to integrate and calculate the beam divergence angle. [0003] The disadvantage of this method is that only a single Faraday probe is installed on the scanning arm, there are few measuring points during scanning, and the reliability of test data is low. Therefore, it is necessary to design an ion thruster beam divergence angle test device that is simple to operate and can simultaneously measure differ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/29
Inventor 陈焘李得天张天平杨俊泰顾左郭宁史楷田恺马欣魏志斌
Owner LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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