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Device and method for utilizing plasma generated by electric propeller to induce charge-discharge effect

A charge and discharge effect, plasma technology, applied in the field of testing

Active Publication Date: 2015-06-10
LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since domestic electric propulsion technology has not been applied to spacecraft, there is no domestic test method for electric propulsion to induce plasma-induced charge and discharge effects.

Method used

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  • Device and method for utilizing plasma generated by electric propeller to induce charge-discharge effect

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Experimental program
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Effect test

Embodiment Construction

[0029] Depend on figure 1 As shown, in the electric propulsion plasma-induced charge-discharge effect test, the space charged environment is simulated by the electron and plasma generated by the electron gun and the electric thruster, and the surface potential of the material sample is tested by the non-contact surface potential tester, and the discharge pulse test system is Obtain the discharge pulse of material sample, its specific implementation method is as follows:

[0030] A device for electric propulsion to generate plasma-induced charge and discharge effects, the device includes an electron gun 1, an ion engine 2, a neutralizer 3, a first non-contact surface potential probe 4, a first potentiometer 5, a discharge pulse test probe Needle 6, oscilloscope 7, sample stage 8, material sample 9, vacuum pumping system 10, insulating pad 11, insulating support frame 12, second non-contact surface potential probe 13, second potentiometer 14, vacuum chamber 15;

[0031] Inside ...

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Abstract

The invention relates to a device and method for utilizing plasma generated by an electric propeller to induce the charge-discharge effect, and belongs to the field of testing. The device for utilizing the plasma generated by the electric propeller to induce the charge-discharge effect comprises an electronic gun, an ion engine, a neutralizer, a first non-contact surface potential probe, a first potentiometer, a discharge pulse test probe, an oscilloscope, a specimen stage, material samples, a vacuum-pumping system, an insulation pad, an insulation supporting frame, a second non-contact surface potential probe, a second potentiometer and a vacuum chamber. The method for utilizing the plasma generated by the electric propeller to induce the charge-discharge effect comprises the steps that a space electrification environment is simulated by electron and the plasma generated by the electronic gun and the electric propeller, charge accumulates on the surfaces of the material samples under comprehensive irradiation of the electron and the plasma, the surface electrification effect is generated, a non-contact surface potential tester is utilized to test potential of the material samples, a discharge pulse tester is utilized to obtain discharge pulses of the material samples, and therefore a test for utilizing the plasma generated by the electric propeller to induce the charge-discharge effect is achieved.

Description

technical field [0001] The invention relates to a device and method for electric propulsion to generate plasma-induced charge-discharge effect, which is suitable for the simulation test of satellite charge-discharge effect under the combined action of plasma generated during electric propulsion and natural plasma in space, and belongs to the field of testing. Background technique [0002] During geomagnetic substorms, geosynchronous orbit (GEO) will generate large-flux plasma with energy ranging from 1 to 50 keV, which will cause the surface of GEO satellites to charge up to 10,000 volts, and the electrostatic discharge generated is the cause of failure of communication and meteorological satellites. main reason. As my country's demand for long-life and high-performance satellites increases, electric propulsion technology will be widely used as a space propulsion technology with high specific impulse, long life and high efficiency. When the thruster is working, it will gene...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
Inventor 陈益峰李得天秦晓刚杨生胜史亮柳青汤道坦王俊
Owner LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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