Spacecraft non-power adaptive potential controller and manufacturing method thereof
A technology of potential controller and manufacturing method, which is applied in the direction of electrode system manufacturing, discharge tube/lamp manufacturing, cold cathode manufacturing, etc., and can solve problems such as energy consumption
Inactive Publication Date: 2019-01-25
BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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However, this method consumes a certain amount of energy, and needs supporting systems such as monitoring and control.
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[0035] The spacecraft field emission projectile, the manufacturing method of the projectile, the spacecraft active potential controller composed of the projectile and the manufacturing method thereof of the present invention will be further described below in conjunction with the accompanying drawings.
[0036] There is already a method for obtaining tungsten wire tip by chemical etching in the prior art, and the morphology of the obtained chemically etched tungsten wire tip can be found in figure 1 . figure 1 The SEM topography of the tungsten wire tip is given. In the emitter structure of the present invention, based on the field emission principle of metal materials, carbon nanotubes are pasted on the metal tip to form a double pointed electric field enhancement structure, and the emitter is made by utilizing the field emission performance of carbon nanotubes. The metal tip It is a tungsten wire tip with a radius of curvature in the micron range. The tungsten wire tip is o...
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The invention discloses a zero-power-consumption adaptive spacecraft potential control method. According to the method, based on a field emission principle of a metal material, a metal sharp point is glued with carbon nanotubes to form a dual sharp-shaped electric field enhancement structure; based on the field emission performance of the carbon nanotubes, an electronic field emitter is manufactured; and when a relatively high potential difference exists between the spacecraft and space plasmas, the emitter can automatically emit electrons so as to lower the potential difference between the spacecraft and space plasmas to realize spacecraft potential control. The invention discloses a zero-power-consumption adaptive potential controller structure for the spacecraft and a manufacturing method for the potential controller structure. Compared with the existing spacecraft potential control method, the potential controller used in method disclosed by the invention has the advantages of simple structure, zero power consumption, capability of automatically regulating to emit current, and the like, and can be used in potential control of various kinds of low-track spacecrafts.
Description
technical field [0001] The invention belongs to the technical field of space environment protection of spacecraft, in particular, the invention relates to a space vehicle self-adaptive potential controller without power consumption, field emitters constituting the controller and their manufacturing method. Background technique [0002] With the development of space technology, the requirements for the reliability of spacecraft are getting higher and higher, and some potential safety hazards in space have gradually emerged. Due to the interaction between the spacecraft and the space plasma, a shell with a high potential difference will be generated between the two, which will cause many safety hazards to the spacecraft. With the use of high-energy solar cell arrays, the potential difference in the shell increases greatly, and the risk of discharge increases even more. At present, some special and important spacecraft, such as the ISS International Space Station and the Russi...
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IPC IPC(8): H01J1/304H01J9/02G05F1/10
CPCG05F1/10H01J1/304H01J9/02
Inventor 刘宇明张凯赵春晴李蔓刘向鹏
Owner BEIJING INST OF SPACECRAFT ENVIRONMENT ENG