| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to plasma engineering and can be used in sterilising goods and/or disinfecting surfaces. The plasma generating apparatus comprises a first, powered electrode and a second electrode structure located opposite the first electrode. An insulating layer is placed between the first electrode and the second electrode structure. The second electrode structure has a plurality of second electrode portions defining gap portions there between. The width of the gap portions is w. Each portion of the second electrode has a forward surface and each gap portion has a forward surface, the height difference between the forward surface of each second electrode portion and the forward surfaces of the adjacent gap portions being h, and wherein h is at most 1 mm and the ratio w/h is at least 1. Thus, the forward surfaces of the second electrode portions and the forward surfaces of the gap portions together provide a smooth topography. The plasma generated by the apparatus (in air or other oxygen-containing gas) forms ozone, which can be used to treat food products, for example. The smooth topography allows almost all of the plasma to be generated inside a package whose wall is pressed towards the second electrode structure.EFFECT: high quality of surface treatment.22 cl, 11 dwg |
