Device and method for manufacturing electrified pollutants by using thermionic electron emission in vacuum state
A technology of thermal electrons and pollutants, which is applied in the simulation device of space navigation conditions, transportation and packaging, space navigation equipment, etc., to achieve the effect of increasing the probability of collision
Active Publication Date: 2013-02-13
NO 510 INST THE FIFTH RES INST OFCHINA AEROSPAE SCI & TECH
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At present, there is no public report on the device or method of ground simulation of charged pollution source technology in vacuum at home and abroad.
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[0034] Such as figure 1 The shown device uses thermionic emission to produce charged pollutants in a vacuum. The device includes: a vacuum test chamber 1, a thermionic emission cathode 2, a thermionic emission cathode ceramic fixture 3, an accelerator support frame 4, and a deflection grid 5. Test flange 6, accelerating pole 9, base 10, gas outlet cover 11, heating table 12, bracket 13, temperature controller, DC constant current power supply, vacuum unit, first stabilized voltage power supply, second stabilized voltage power supply; QCM Support 8; And QCM probe 7, QCM frequency monitor that monitors charged pollutant;
[0035] Among them, a base 10 is provided at the center of the vacuum test chamber 1; the thermionic emission cathode 2 is fixedly installed on the left side of the base 10 through the thermal electron emission cathode ceramic fixture 3; the accelerating pole 9 is fixedly installed on the base 10 through the accelerating pole support frame 4 The middle part; t...
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The invention relates to a device and method for manufacturing electrified pollutants by using thermionic electron emission in a vacuum state, and belongs to the field of vacuum technology application. The device comprises a vacuum testing chamber, a thermionic electron emission cathode, a thermionic electron emission cathode ceramic fixing piece, an acceleration grid supporting frame, a deflection mesh, a testing flange, an acceleration grid, a base, a gas outlet cover, a heating platform, a bracket, a temperature controller, a direct current stabilizing power supply, a vacuum machine unit, a first voltage stabilizing power supply and a second voltage stabilizing power supply as well as a QCM (Quartz Crystal Monitor) bracket; and the method comprises the steps of generating electrons by using the thermionic electron emission cathode, enabling the electrons to repeatedly move in an annular electric field by using the acceleration grid, and reacting the moving electrons with a material heated gas outlet product so as to generate the electrified pollutants. Through the adoption of the method provided by the invention, the electrified pollutants generated by different material gas outlet pollutants can be obtained under a vacuum condition.
Description
technical field [0001] The invention relates to a device and a method for manufacturing charged pollutants in a vacuum by using thermal electron emission, belonging to the field of vacuum technology applications. Background technique [0002] In medium and high orbits, the plasma is very thin, and the distance of the electric field on the surface of the spacecraft extends from several meters to hundreds of meters. This will change the transmission path of charged pollutants around the spacecraft, redistribute the pollutants on the surface of the spacecraft, and deposit them anywhere on the spacecraft, which will aggravate the overall pollution of the spacecraft and affect sensitive systems located in low-pollution areas. Cause more serious harm (such as the transfer of pollutants from non-critical parts to key parts in the satellite high-power radio frequency system, greatly reducing the discharge threshold of the system, making the system more prone to discharge and burning...
Claims
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Inventor 郭兴王鹢杨生胜庄建宏杨青孔风连薛玉雄颜则东
Owner NO 510 INST THE FIFTH RES INST OFCHINA AEROSPAE SCI & TECH