Generation of the Homogenous Dielectric Barrier Discharge in Air with Iiquid Barrier

With the set-up of cone-plate electrode dielectric barrier discharge experimental device with silicone oil as barrier in the laboratory,a homogenous dielectric barrier discharge under atmospheric pressure is generated in air.The discharge characteristics in different voltages were studied by voltage and current waveforms.Lissajous figures and light-emission pictures were analyzed and the change of discharge characteristics of DBD under different voltages was investigated using light-emission pictures.The discharge power(P) and transferring charge(Q) of DBD calculated from Lissajous figures and affected by amplitude voltage and power frequency were further researched.Results show that the cone-plate electrode DBD with methyl silicone oil as barrier can produce homogenous discharge in air;and the discharge power and transferring charge increase non-linearly with the increase of amplitude voltage and power frequency.