Dynamic Characteristics of a Microhollow Cathode Sustained Discharge with Split Third Electrodes for Potential Flow Application to Flow Velocimetry

作     者：Sharmin Sultana Jichul Shin 

作者机构：Institute of E-vehicle Technology University of Ulsan Ulsan 680-749 Korea Department of Aerospace Engineering University of Ulsan Ulsan 680-749 Korea 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2014年第31卷第9期

页      面：107-110页

核心收录：

学科分类：080901[工学-物理电子学] 07[理学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 070203[理学-原子与分子物理] 0804[工学-仪器科学与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：the Basic Science Research Program through the National Research Foundation of Korea the Funds of the Ministry of Science, ICT and Future Planning 

主　　题：CATHODES RESEARCH ELECTRODES ARGON GAS flow FLOW velocity -- Measurement 

摘      要：The dynamic behavior of a microhollow cathode sustained discharge with split third electrodes is experimentally investigated. The sustained discharge swells isotropically in the presence of a small amount of argon gas flow that is not clearly detectable with a conventional single third electrode. At high flow rates, the sustained discharge transitions to a fast-moving constricted discharge with an are shape. The modified discharge structure causes a shift in current distribution over the third electrodes, and the current peak location varies linearly with the flow rate over a certain flow range. Such linear behavior may be applied to in situ flow velocity measurement.