Experimental Study on Line-point Corona Discharge Characteristics

At present,the study of non-equilibrium plasma at atmospheric pressure and the source of it are limited to weak(electric field) ionization discharge area,there are low plasma concentrations and high energy consumption,large volume and other issues.Therefore,the research of non-uniform corona discharge characteristics and ion movement laws under the non-uniform electric field which to solve the above issues have become imperative.In this experiment,the self-made of line-point plasma generator as the research object,study its corona discharge characteristics and the laws of ion movement which under the non-uniform and strong electric field.Finally,its unique physical properties are obtained.The use of thin corona pole,makes it easier for the air ionization generating negative ions.Through data simulation,it is obtained that this line-point corona discharge space,the concentration of negative ions can reach 1014～1015/m3,and the higher the voltage,the more close to the corona zone,the greater the field strength,the higher the rate of ion transport,the greater the concentration of negative ions.This device can receive a higher concentration,more focus on access to charged particles compared to the wire-plate discharge device in the same location within the unit volume.