Cold plasma hand-held device for the plasma treatment of surfaces

摘要

Plasma tool for generating a cold plasma jet with a plasma nozzle comprising a hollow body (4) of insulating material for the supply of process gas, a frequency generator and one of at least one coil (6) or a coil (6) and optionally additionally one or two capacitors C2 and C1 comprising a matching network for generating the required voltage, characterized in that the coil (6) of the matching network is integrated in the plasma nozzle and the plasma nozzle comprises two electrodes, E1 and E2, the electrode E1 being connected to the nozzle-side end of the coil (6 ) and optionally a ring electrode arranged around an insulating hollow body or a rod electrode arranged in the hollow body, and in that the electrode E2 is arranged at the nozzle-side end of the hollow body (4) and at a distance from the first electrode E1 suitable for plasma generation Ring electrode is with de m grounded housing is connected.