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高场不对称波形离子迁移谱关键测控模块研究
  • ISSN号:0254-3087
  • 期刊名称:仪器仪表学报
  • 时间:2012.9.9
  • 页码:1974-1979
  • 分类:TN141.5[电子电信—物理电子学] TU375[建筑科学—结构工程]
  • 作者机构:[1]Department of physics, University of Science and Technology of China, Hefei 230026, China, [2]State Key Laboratory of Transducer Technology, Hefei Institute of Intelligent Machines,Chinese Academy of Sciences, Hefei 230031,China, [3]Department of Electrical and Computer Engineering, Dalhousie University, B3H 4R2,Canada, [4]Ecole polytechnique federale de Lausanne(EPFL), CH-1015, Switzerland
  • 相关基金:supported in part by External Cooperation Program of Chinese Academy of Sciences (No. GJHZI218), National Natural Science Foundation of China (No. 61004133) and SSSTC JRP_awards 2011 (IZLCZ2_I38953)
  • 相关项目:用于农药残留现场检测的解吸附二维离子迁移谱方法研究
中文摘要:

In this paper,a two-dimensional nanometer scale tip-plate discharge model has been employed to study nanoscale electrical discharge in atmospheric conditions.The field strength distributions in a nanometer scale tip-to-plate electrode arrangement were calculated using the finite element analysis(FEA) method,and the influences of applied voltage amplitude and frequency as well as gas gap distance on the variation of efective discharge range(EDR) on the plate were also investigated and discussed.The simulation results show that the probe with a wide tip will cause a larger efective discharge range on the plate;the field strength in the gap is notably higher than that induced by the sharp tip probe;the efective discharge range will increase linearly with the rise of excitation voltage,and decrease nonlinearly with the rise of gap length.In addition,probe dimension,especially the width/height ratio,afects the efective discharge range in diferent manners.With the width/height ratio rising from 1:1 to 1:10,the efective discharge range will maintain stable when the excitation voltage is around 50 V.This will increase when the excitation voltage gets higher and decrease as the excitation voltage gets lower.Furthermore,when the gap length is 5 nm and the excitation voltage is below 20 V,the diameter of EDR in our simulation is about 150 nm,which is consistent with the experiment results reported by other research groups.Our work provides a preliminary understanding of nanometer scale discharges and establishes a predictive structure-behavior relationship.

英文摘要:

In this paper, a two-dimensional nanometer scale tip-plate discharge model has been employed to study nanoscale electrical discharge in atmospheric conditions. The field strength dis- tributions in a nanometer scale tip-to-plate electrode arrangement were calculated using the finite element analysis (FEA) method, and the influences of applied voltage amplitude and frequency as well as gas gap distance on the variation of effective discharge range (EDR) on the plate were also investigated and discussed. The simulation results show that the probe with a wide tip will cause a larger effective discharge range on the plate; the field strength in the gap is notably higher than that induced by the sharp tip probe; the effective discharge range will increase linearly with the rise of excitation voltage, and decrease nonlinearly with the rise of gap length. In addition, probe dimension, especially the width/height ratio, affects the effective discharge range in different manners. With the width/height ratio rising from 1 : 1 to 1 : 10, the effective discharge range will maintain stable when the excitation voltage is around 50 V. This will increase when the excitation voltage gets higher and decrease as the excitation voltage gets lower. Fhrthermore, when the gap length is 5 nm and the excitation voltage is below 20 V, the diameter of EDR in our simulation is about 150 nm, which is consistent with the experiment results reported by other research groups. Our work provides a preliminary understanding of nanometer scale discharges and establishes a predictive structure-behavior relationship.

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期刊信息
  • 《仪器仪表学报》
  • 中国科技核心期刊
  • 主管单位:中国科学技术协会
  • 主办单位:中国仪器仪表学会
  • 主编:张钟华
  • 地址:北京东城区北河沿大街79号
  • 邮编:100009
  • 邮箱:yqyb@vip.163.com
  • 电话:010-84050563
  • 国际标准刊号:ISSN:0254-3087
  • 国内统一刊号:ISSN:11-2179/TH
  • 邮发代号:2-369
  • 获奖情况:
  • 1983年评为机械部科技进步三等奖,1997年评为中国科协优秀科技期刊三等奖
  • 国内外数据库收录:
  • 美国化学文摘(网络版),荷兰文摘与引文数据库,美国工程索引,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版),英国英国皇家化学学会文摘,中国北大核心期刊(2000版)
  • 被引量:42481