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Gas pulse discharge parameter measuring method and device

A technology of parameter measurement and gas pulse, which is applied in the direction of measuring devices, measuring electricity, and measuring electrical variables, etc., can solve problems such as imperfect gas discharge parameter measurement methods, increase the amount of experimental data, improve measurement efficiency, and increase possibilities Effect

Active Publication Date: 2020-11-03
XI AN JIAOTONG UNIV
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Problems solved by technology

[0005] However, the current measurement of gas discharge parameters is limited to low pressure conditions, and the measurement methods for gas discharge parameters under atmospheric pressure or higher pressure conditions are not yet perfect.

Method used

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  • Gas pulse discharge parameter measuring method and device
  • Gas pulse discharge parameter measuring method and device
  • Gas pulse discharge parameter measuring method and device

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Embodiment Construction

[0045] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0046] figure 1 A schematic structural diagram of a gas pulse discharge parameter measurement device provided in the embodiment of the present application, specifically including a pulse power supply 1 , a second resistor 2 , a stray capacitance 3 , an electrode 5 , a first resistor 8 and an experimental chamber 11 .

[0047] Specifically, the experi...

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Abstract

The invention discloses a method and a device for measuring gas pulse discharge parameters, and the method and device are used for realizing accurate measurement of the gas pulse discharge parametersunder an atmospheric pressure condition. According to the invention, the method comprises the steps: adopting a gas pulse discharge parameter measuring device to respectively obtain a pulse voltage and a loop current of gas to be measured in a non-breakdown state and a breakdown state; establishing a numerical simulation model according to the particle control equation and the electric field control equation; according to the numerical simulation model and a preset equation set, adjusting and optimizing the stray capacitance parameter value of the numerical simulation model through the non-breakdown experiment data; according to the optimized numerical simulation model, obtaining the simulated loop current, and then determining gas discharge parameters such as a soup ionization coefficient, an electron adhesion coefficient, a secondary electron emission coefficient, a photoionization coefficient and the like which enable the breakdown experiment data and the breakdown simulation data to take minimum values by adopting a direction acceleration optimization method, and calculating the standard deviation between the breakdown experiment data and the breakdown simulation data.

Description

technical field [0001] The present application relates to the technical field of gas discharge parameter measurement, in particular to a gas pulse discharge parameter measurement method and device. Background technique [0002] Gas insulation and discharge technology is widely used in the fields of power system, pulse power, semiconductor and material preparation, and plays an important role. For example, the calculation accuracy of gas insulation performance can affect the performance design and production cost of electrical equipment; the regulation of gas discharge plasma characteristics is a key technology in the field of precision semiconductor material preparation; and so on. [0003] In the new fields of gas discharge applications such as sterilization, pollutant degradation, and material modification, the understanding and analysis of the physical and chemical processes of gas discharge can realize accurate calculation of gas insulation properties and control of plas...

Claims

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Application Information

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IPC IPC(8): G01R31/12
CPCG01R31/1281
Inventor 张冠军姚聪伟陈思乐郭宝烘薛建议温嘉烨陈星宇常正实穆海宝
Owner XI AN JIAOTONG UNIV
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