帕邢定律相关问题的研究

项目名称： 帕邢定律相关问题的研究

项目编号： No.51477087

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 电工技术

项目作者： 王新新

作者单位： 清华大学

项目金额： 80万元

中文摘要： 帕邢定律是气体放电最著名的研究成果之一，它无论在理论上还是在应用上都具有重要的价值。但是，随着研究的进展，人们陆续发现帕邢定律存在一些问题，并且其中几个问题至今没有明确的解答。本项目针对其中两个问题（在常规实验条件下和微秒脉冲电压下气隙击穿电压偏离帕邢定律）进行理论分析、数值计算和实验研究，重点关注带电粒子径向扩散损失、电场不均匀度以及脉冲放电时延等对帕邢定律的影响。这些研究工作将有助于人们进一步认识帕邢定律的适用条件和范围，促进气体放电理论的发展。

中文关键词： 气体放电；帕邢定律；帕邢曲线

英文摘要： As one of the most famous achievements in gas discharge research, Paschen law played an important role in the theory and application of gas discharge. However, as the development of the gas discharge research, people found some problems related to Paschen law. Among these problems there are two with no clear answers up to now. The first one is the measured DC breakdown voltages of the gas gaps with moderate pressure and length deviate from Paschen law. The second one is the measured breakdown voltage of the gas gaps under microseconds pulse voltage deviate from the Paschen law. Aiming at these two problems, the theoretical analysis, numerical computation and experimental measurements will be made on how the charged particle loss due to radial diffusion, uniformity of the electric field and pulse breakdown delay influencing the validity of Paschen law. These research will further clarify the conditions under which Paschen law is valid and will be helpful to the development of the gas discharge theory.

英文关键词： gas discharge;Paschen law;Paschen curve