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Space-time control method and device of high-voltage discharge plasma

A plasma and high-voltage discharge technology, which is applied in the direction of plasma and electrical components, can solve practical application limitations and other problems, and achieve the effects of increasing production efficiency, accurate and controllable discharge time, and improving production efficiency

Inactive Publication Date: 2019-06-07
TIANJIN UNIV
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  • Claims
  • Application Information

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Problems solved by technology

However, no matter which discharge method is used, its essence is to use a strong electric field to ionize and break down the gas to generate plasma. The biggest disadvantage of this method is the time and space (time and space) of the discharge and the waveform of the output voltage, the gas Factors such as composition, temperature, humidity, and electrode shape are closely related and have strong randomness, so it is difficult to control the time and space of the discharge plasma, which brings many limitations to practical applications

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  • Space-time control method and device of high-voltage discharge plasma
  • Space-time control method and device of high-voltage discharge plasma

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Embodiment Construction

[0015] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0016] Such as figure 1 As shown, the present invention mainly includes two parts: a femtosecond pulsed laser system and a high-voltage discharge system. The ultimate goal of the present invention is to realize the precise control of discharge plasma time and space. The present invention will be described below in conjunction with the accompanying drawings and embodiments.

[0017] Femtosecond pulsed laser 1 outputs femtosecond pulsed laser 2 , femtosecond pulsed laser 2 can be light of any wavelength, and femtosecond pulsed laser 2 is focused by focusing lens 3 to form a filament. The high-voltage power supply 4 can be a direct high-voltage power supply or an AC high-voltage power supply. The output end of the high-voltage power supply 4 is a pair of discharge electrodes 5. The discharge electrodes 5 can also be in other shapes. In this case, a need...

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Abstract

The invention relates to a device for generating plasma by high-voltage discharge. The device comprises a high-voltage power source and a discharge electrode. The device further comprises a femtosecond pulse laser and a focusing lens, the light beam generated by the femtosecond pulse laser is focused by the focusing lens to form a filament, and the discharge electrode is arranged at a position where the filament passes through. The present invention provides a plasma space-time control method by employing the device provided by the invention, and the output time of the femtosecond pulse laserand the space position of the filament are regulated, and the space and the time generated by the discharge plasma are controlled.

Description

technical field [0001] The invention relates to a space-time control method of high-voltage discharge plasma. Background technique [0002] As the fourth state of matter, plasma is an ionized gaseous substance that is electrically neutral as a whole. Due to its certain electrical conductivity and bactericidal properties, plasma is widely used in the fields of industry, environment and medicine, such as engine ignition, pollution treatment and anti-disease. The main ways to generate gas plasma are high temperature and strong electric field. High-voltage discharge is a typical method of generating plasma based on a strong electric field, such as corona discharge, spark discharge and dielectric barrier discharge. However, no matter which discharge method is used, its essence is to use a strong electric field to ionize and break down the gas to generate plasma. The biggest disadvantage of this method is the time and space (time and space) of the discharge and the waveform of t...

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Application Information

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IPC IPC(8): H05H1/48
Inventor 高强李博李中山
Owner TIANJIN UNIV