Investigation of Plasma Discharge Physical Characteristics Based on a UV Krypton Lamp Model
Dielectric barrier discharge technology is one of the important detection technologies in the field of intelligent detection,and the plasma discharge cavity is an important part to realize the dielectric barrier discharge technology.Because the discharge process inside the cavity involves complex physical and chemical reactions,it is currently difficult to study the change process of the internal parameters of the plasma.Taking krypton gas as the research object,based on the principle of krypton atomic energy level transition,the structural model of ultraviolet krypton lamp with dielectric barrier discharge was established by using the simulation software.The model simulated the physical properties of the plasma under krypton gas discharge through the transient solver in the plasma analysis unit of simulation software.At the same pressure,the effects of 400,800 and 1 200 V discharge voltages on the number densities of specific particles were analyzed,and the particle light intensity was characterized by the number densities of particles in specific energy level states.The distributions of electric potential,electron density and positive ion density in the model internal discharge region at 1 200 V,760 Torr(1 Torr=133.3 Pa)were obtained.The simulation results reveal a positive correlation between the gas discharge intensity and voltage,which has guiding significance for the basic research and model design of dielectric barrier plasma discharge technology.
万方数据
维普
