Desenvolvimento e Caracterização de um Sistema de Descarga por Barreira Dielétrica

T.T. de O. Pereira¹; R. R. de Melo²; H. F. M. da Silva²; J. C. P. Barboza¹; C. Alves Jr.²

¹ Universidade Federal Rural do Semi-Árido; ² Universidade Federal do Rio Grande do Norte

doi:10.20906/CPS/SBSE2016-0273

Resumo

The electrical and optical characteristics of an asymmetrical surface dielectric barrier discharge in atmospheric air have been investigated experimentally. Voltages in the range of 18-29KV and 18-22KHz frequencies were applied to the DBD system, producing filamentous and diffuse discharges on the surface of a glass dielectric. These discharges reached peak currents up to 4mA. In terms of efficiency, the system obtained minimum power 5W required to produce plasma diffuse regime. The best conditions found in the system were found for the distance between electrodes 0.8mm.

Palavras-chave: Dielectric barrier discharge; plasma applications; plasma devices