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Verification test device and method for active control device of spacecraft structure potential

A technology of potential active control and spacecraft structure, which is applied in the direction of electrical testing/monitoring, etc., can solve the problems that the effect of this kind of technology cannot be guaranteed, spacecraft verification test devices and methods, etc.

Inactive Publication Date: 2016-07-20
LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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Problems solved by technology

[0005] However, in the prior art, there is no device and method for verifying the potential control technology of these spacecraft structures, which leads to the inability to guarantee the effect of this type of technology

Method used

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  • Verification test device and method for active control device of spacecraft structure potential
  • Verification test device and method for active control device of spacecraft structure potential
  • Verification test device and method for active control device of spacecraft structure potential

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Embodiment approach

[0056] As an implementation, the verification test method based on the verification test device of the spacecraft structure potential active control device may also include:

[0057] S70: Turn on the low-energy electron gun 2 again, and monitor the potential change of the aluminum plate 12 through the potential monitoring module within a predetermined time.

[0058] Through this step, the point-holding ability of the measured spacecraft structure potential active control device can be verified.

[0059] As an implementation manner, before step S10, the verification test method may also include:

[0060] closing the second switch 10;

[0061] Open the vacuum gauge 13 and the vacuum mechanical pump 6, so that the vacuum chamber air pressure drops below 1Pa;

[0062] Turn on the vacuum molecular pump 5 so that the vacuum chamber 1 pressure drops to 1×10 -4 Pa.

[0063] In this way, the vacuum state in the vacuum chamber 1 can be guaranteed before starting the verification tes...

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Abstract

The invention relates to a verification test device and method of a spacecraft structural potential active control device. The verification test device of the spacecraft structural potential active control device comprises a vacuum chamber, a low-energy electronic gun, an aluminum panel, a collection electrode and a potential monitoring module, wherein the low-energy electronic gun, the aluminum panel, the collection electrode and the potential monitoring module are arranged in the vacuum chamber, the low-energy electronic gun is used for transmitting electrons with energy lower than 100kev to the aluminum panel arranged below the low-energy electronic gun, the aluminum panel is used for releasing the electrons to the tested spacecraft structural potential active control device, and then releasing the electrons to the collection electrode arranged above the spacecraft structural potential active control device, and the potential monitoring module is used for monitoring change information of the potential on the aluminum panel. When the verification test device and method of the spacecraft structural potential active control device are adopted, verification tests can be carried out on the spacecraft structural potential active control device, and effectiveness of the spacecraft structural potential active control device can be detected.

Description

technical field [0001] The invention relates to a verification technology of an active control device for a spacecraft structure potential, in particular to a verification test device and method for an active control device for a spacecraft structure potential. Background technique [0002] When a spacecraft is in orbit, it will interact with the environment such as space plasma and high-energy electrons, resulting in the accumulation and discharge of electrostatic charges. This phenomenon is called the spacecraft charging and discharging effect or the spacecraft charging effect. During the space operation of the spacecraft, the potential of its own structure is generally used as the ground potential. Structural potential refers to the potential of the structure relative to the space plasma when the spacecraft is suspended in space as a whole. Due to the limited capacitance of the spacecraft structure relative to the space, under the action of the space charged environment,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B23/02
Inventor 史亮李得天汤道坦陈益峰秦晓刚杨生胜柳青杜杉杉
Owner LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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