共面薄膜电极表面放电冷却技术

周织建; 洪肇斌

doi:10.3788/OPE.20182604.0866

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共面薄膜电极表面放电冷却技术

微纳技术与精密机械 | 更新时间：2020-07-05

- 共面薄膜电极表面放电冷却技术
- Electrocooling technology based on surface discharge of thin coplanar flat electrodes
- 光学精密工程 2018年26卷第4期页码：866-874
- 作者机构：
  
  1.中国电子科技集团公司第三十八研究所, 安徽合肥 230088
  2.南京理工大学机械工程学院, 江苏南京 210094
- 作者简介：
  
  [ "周织建(1970-), 男, 安徽黄山人, 博士, 工程师, 2016年于南京理工大学获得博士学位, 目前主要从事高集成度小型化雷达的热设计和环控技术研究。E-mail:zhouzhijian2011@163.com" ]
- 基金信息：
  
  国家自然科学基金资助项目(No.51475245)
- DOI：10.3788/OPE.20182604.0866
  中图分类号： TB66
- 收稿日期：2017-09-05，
  
  录用日期：2017-11-1，
  
  纸质出版日期：2018-04-25
- 稿件说明：
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周织建, 洪肇斌. 共面薄膜电极表面放电冷却技术[J]. 光学精密工程, 2018,26(4):866-874.

Zhi-jian ZHOU, Zhao-bin HONG. Electrocooling technology based on surface discharge of thin coplanar flat electrodes[J]. Optics and precision engineering, 2018, 26(4): 866-874.
周织建, 洪肇斌. 共面薄膜电极表面放电冷却技术[J]. 光学精密工程, 2018,26(4):866-874. DOI： 10.3788/OPE.20182604.0866.

Zhi-jian ZHOU, Zhao-bin HONG. Electrocooling technology based on surface discharge of thin coplanar flat electrodes[J]. Optics and precision engineering, 2018, 26(4): 866-874. DOI： 10.3788/OPE.20182604.0866.

摘要

为研究一种可用于雷达领域的新型冷却技术，本文研究了高电压下共面薄膜电极之间的DC表面放电现象。设计制作了一系列具有不同参数且带有一个阳极针尖以及两个对称布置阴极的样机，通过改变基底表面粗糙度以及不同的结构参数（如凹槽深度、凹槽宽度以及阴极长度等）进行实验测试。结果表明：主要受到基底表面离子迁移率的影响，凹槽深度对于共面薄膜平面电极的表面放电现象影响最大；表面放电的电流稳定性随着深度的增加而增加；而放电起始电压则随着深度的增加而减小；离子与平面基底之间的流体阻力影响相对较小。共面薄膜电极表面放电的研究对于推动电冷却技术在雷达技术领域的应用具有重要意义。

Abstract

The DC surface high voltage discharge of thin coplanar flat electrodes was experimentally analyzed for the purpose of studying a cooling technology in radar filed. A series of samples including two symmetrical cathodes and one anode with a sharp tip were built to evaluate the effects on surface discharge of the separation between two thin coplanar flat electrodes and the flow resistance between ions and a flat substrate. A series of tests have been done for the surface discharge characteristics by changing surface roughness and structural parameters such as cavity depth

gap width and cathode length. The main results show that the cavity depth is the most important structural parameter

since it has the greatest effect on the mobility of neutral molecules in the space between the thin coplanar flat electrodes. The space is a key role for collisions to generate the surface discharge

which is affected by ion mobility. The stability of surface discharge is in direct proportion to gap depth

but the firing voltage decreases with the increase of the depth. Besides

the flow resistance between ions and flat substrate has relatively less effect on the surface discharge. The research of the surface discharge of thin coplanar flat electrodes offers the promise of electrocooling application in radar field in the future.

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