atmospheric pressure

Multi Frequency Plasma Generating Device and Associated Method

The invention relates to a device (1) for generating a plasma, particularly an atmospheric plasma, comprising: a plasma source (100) having a first electrode (101) and optionally a second electrode (102) being arranged opposite the first electrode (101), and a volume (or channel) (103) arranged adjacent the first electrode (101) for receiving a gas (G), and at least one radiofrequency power supply (200) in electrical contact with said first electrode (101) for applying a radiofrequency voltage (V) thereto.

Device for plasma-supported treatment of liquids

The invention relates to a device (10) for treating a liquid with a plasma, the device (10) having a high-voltage electrode (20) and a liquid-permeable ground electrode device (30). The ground electrode device (30) has a flat, conductive area (32) and a porous area (34) arranged on the flat, conductive area (32), the conductive area (32) being liquid-permeable along its area. A discharge space (40) is formed between the ground electrode device (30) and the high-voltage electrode (20).

Device and method for generating a plasma jet

The invention relates to a device (10) for generating a plasma jet (P) comprising a first conduit (11) inside a second conduit (12), a first electrode (17) and a second electrode (18) for generating an electric field in a feed gas flow (F) provided in a first flow channel (15) to generate a plasma jet (P), and adapted to provide a curtain gas flow (C) in the space between the first and second conduit (11,12), wherein the first electrode (17) is positioned radially outside of the first flow channel (15), and wherein the radial distance of the second electrode (18) from a longitudinal axis (l

Device for igniting and generating an expanding diffuse microwave plasma and device for plasma treating surfaces and substances by using this plasma

The present invention relates to an apparatus for igniting and generating a propagating, diffuse microwave plasma. The device is suitable for generating microwave plasmas for the purpose of plasma treatment of surfaces and substances, in particular of three-dimensional objects as well as of particles under atmospheric pressure.
The solutions according to the invention are presented in the claims.

Device for generating a non-thermal atmospheric pressure plasma

The invention relates to a device for generating a cold, HF-excited plasma under atmospheric pressure conditions, comprising a metal housing functioning as a grounded electrode in the region of the emergent plasma, wherein an HF generator, an HF resonance coil having a closed ferrite core suitable for the high frequency, an insulating body acting as a gas nozzle, and a high-voltage electrode mounted in the insulating body are disposed in such a manner that they are permeated or circulated around by process gas.

Cold plasma for implement for plasma treatment of surfaces

A plasma tool for generating a cold plasma beam (10) is described. The plasma tool is defined by the fact that it has a plasma nozzle, in particular a plasma nozzle which is dimensioned for operation by hand, wherein at least the coil (6) of the adaptation network is integrated into the plasma nozzle, for operation with a high frequency generator in addition to the capacitor C2, while the capacitor C1 can be arranged in the generator itself or in its vicinity.

Influence of surface parameters on dielectric-barrier discharges in argon at subatmospheric pressure - dataset

The provided data describe the discharge current in DBD obtained by fluid modelling using different values of for the secondary electron emission coefficient γ and and the relative permittivity of the dielectric barrier εr in comparison with the measured current at a pressure of 100 mbar and an applied voltage amplitude of 1.8 kV. Furthermore, the dissipated power obtained by model calculations for different values of γ and εr together with the measured power in dependence on the pressure is given.