空气放电特性参数间相关性分析  

Correlation Analysis of Characteristic Parameters in Air Discharge

作　　者：张信华 贺华[3] 蔡小红 常志东 吴桐 ZHANG Xin-hua;HE Hua;CAI Xiao-hong;CHANG Zhi-dong;WU Tong(School of Photoelectric Engineering,Changzhou Institute of Technology,Changzhou Jiangsu 213032,China;Suzhou A G Medical Equipment Co.,Ltd., Suzhou Jiangsu 215011,China;School of Mechchano-Electronic Engineering,Xi Dian University,Xi'an 710071,China;Jiaxing A G Medical Equipment Co.,Ltd.,Jiaxing Zhejiang 314022,China)

机构地区：[1]常州工学院光电工程学院,江苏常州213032 [2]苏州恩奇医疗器械有限公司,江苏苏州215011 [3]西安电子科技大学机电工程学院,西安710071 [4]嘉兴恩奇医疗器械有限公司,浙江嘉兴314022

出　　处：《科技和产业》2021年第4期234-239,共6页Science Technology and Industry

基　　金：姑苏创新创业领军人才专项(ZXL2018192)。

摘　　要：通过对同轴圆筒结构在非平衡状态下进行放电实验研究,并对实验数据进行线性拟合分析,探究常温空气放电过程中各特性参数之间的联系。实验发现,在电压满足阈值条件时,频率变化是直接影响等离子射流的主要因素,频率改变会引起射流长度相应的变化。频率的连续变化过程中,因电场驻波的影响存在突变点;而射流温度与频率变化虽受驻波影响,存在极值跳变,但射流长度与射流温度基本成对应关系;在满足阈值条件下,射流温度与电压之间呈线性增长关系;气体流速小于1 L/min时,流速变化对射流温度影响较大;当流速在1~4 L/min时,射流温度随气流速度变化较小。Through the discharge experiment of coaxial cylinder structure under non-equilibrium state,and the linear fitting analysis of the experimental data,the relationship between various characteristic parameters in the process of normal temperature air discharge is explored.The results show that the variation of frequency is the main factor directly affecting the plasma jet when discharge threshold voltage is satisfied.Adjusting the frequency leads to the change of jet length.Attributed to the standing waves of the electric filed,there exists mutation point of the plasma jet length.Although the relation between jet temperature and frequency is affected by the standing waves even leading to some mutation point,however the jet temperature and the jet length exists good linear relation.Also,experimental result demonstrates a linear relation between jet temperature and discharge voltage when threshold is met.When the gas flow rate is within 1 L/min,the variation of flow rate has a great influence on the jet temperature;While the flow rate is between 1 L/min to 4 L/min,it has less impact on jet temperature.

关 键 词：空气放电 大气压等离子体 射流 特性参数 关联性 

分 类 号：O53[理学—等离子体物理] N34[理学—物理]