Abstract: The invention relates to a method for detecting gases that can be ionized wherein an atmospheric plasma jet is produced, wherein a gas mixture is brought into interaction with the plasma jet, and wherein an electrical quantity is measured as a measure of the concentration of the gas in the gas mixture. The invention further relates to a device for detecting gases that can be ionized, including a gas inlet, means for ionizing a gas, a voltage source, two electrodes, and means for determining an amperage, wherein the two electrodes are connected to the voltage source, wherein the means for determining an amperage are connected to the electrodes in such a way that the magnitude of the current flowing between the electrodes can be measured, and wherein a plasma nozzle is provided to produce an atmospheric plasma jet.

Abstract: The invention relates to a device for plasma treatment of living tissue, with a plasma source for generating an atmospheric plasma jet, with a support device for a body part comprising the tissue to be treated, with a movement device for moving the plasma source relative to the surface of the tissue, and with a control device for controlling the movement device and for controlling the operation of the plasma source, wherein the control device has means for adjusting the plasma output as a function of the position relative to the tissue. The invention solves the technical problem of permitting more reliable and faster plasma treatment of living tissue.

Abstract: Disclosed is a method for producing surface-modified particles in atmospheric pressure plasma, and a method for producing a coating with particles dispersed therein using an atmospheric pressure plasma. The plasma is produced by a discharge between electrodes in a process gas. In both methods one of the electrodes is a sputter electrode, which sputters the particles due to the discharge. Also disclosed are methods for producing composite material, with which surface-modified particles are built in a matrix, and to said composite materials. Also disclosed are plasma nozzles and devices containing said nozzles for producing surface-modified particles and coatings with the particles dispersed therein.

Abstract: The invention relates to a method for detecting gases that can be ionized wherein an atmospheric plasma jet is produced, wherein a gas mixture is brought into interaction with the plasma jet, and wherein an electrical quantity is measured as a measure of the concentration of the gas in the gas mixture. The invention further relates to a device for detecting gases that can be ionized, including a gas inlet, means for ionizing a gas, a voltage source, two electrodes, and means for determining an amperage, wherein the two electrodes are connected to the voltage source, wherein the means for determining an amperage are connected to the electrodes in such a way that the magnitude of the current flowing between the electrodes can be measured, and wherein a plasma nozzle is provided to produce an atmospheric plasma jet.

Abstract: A device for cleaning an inner surface of a workpiece includes a beam of radiation, at least one generating unit for generating the beam, a drive unit for rotating the at least one generating unit about an axis of rotation, where the at least one generating unit is configured with a preferential direction towards the surface to be treated. So that an inner surface of the workpiece can be cleaned with short effect times of the beam, it is provided that an arm connected to the at least one generating unit is provided for inserting the generating unit into the workpiece and that the axis of rotation and the preferential direction are inclined relative to one another.

Abstract: A method for the disinfection of objects includes producing an atmospheric plasma jet inside a space through which a process gas flows and at least partially bombarding a surface of the object with the plasma jet, whereby a disinfecting effect is achieved by way of an energy transfer from the plasma jet to the surface of the object. With this method a more effective surface disinfection is made possible without increasing the quantity of disinfecting agent in itself.

Abstract: The present invention relates to a method for generating a low-pressure plasma, in which a partial vacuum is generated by means of a vacuum pump in a low-pressure chamber, and a plasma jet is introduced at higher pressure into the low-pressure chamber. The present invention also relates to various applications of the low-pressure plasma for surface pretreatment, for surface coating, or for treating gases. The present invention also relates to a device for generating a low-pressure plasma.

Abstract: A method for treating the surface of a work piece includes exposing the surface to be treated to a beam of electromagnetic radiation, and simultaneously exposing an area of the surface exposed to the beam of electromagnetic radiation at least partially to a plasma beam. This method provides an improved pretreatment, in particular cleaning of the surface of a work piece, by, at least in part, energy density enhancements of each of the beam of electromagnetic radiation and the plasma beam.

Abstract: A method for coating surfaces, for which a precursor material is caused to react with the help of plasma and the reaction product is deposited on a surface, the reaction as well as the deposition taking place at atmospheric pressure, such that a plasma jet is generated by passing a working gas through an excitation zone and the precursor material is supplied with a lance separately from the working gas to the plasma jet.

Abstract: A method for opening or sealing glass ampoules (38) by melting the glass with the help of a jet (36) of a hot medium, characterized in that the medium is an atmospheric plasma, produced by an electric discharge.

Abstract: A plasma nozzle for treating surfaces, especially for the pre-treatment of plastic surfaces, with a tubular, electrically conductive housing (10), which forms a nozzle channel (12), through which the working gas is flowing, an electrode (18), disposed coaxially in the nozzle channel, and a high-frequency generator (20) for applying a voltage between the electrode (18) and the housing, the outlet of the nozzle channel (12) is constructed as a narrow slot (32), which extends transversely to the longitudinal axis of the nozzle channel.

Abstract: A method of removing organic impurities from a surface of a substrate that is used for feeding or processing web material, wherein a jet of an atmospheric plasma is directed onto the surface of the substrate.

Abstract: A plasma nozzle for treating surfaces, especially for the pre-treatment of plastic surfaces, with a tubular, electrically conductive housing (10), which forms a nozzle channel (12), through which the working gas is flowing, an electrode (18), disposed coaxially in the nozzle channel, and a high-frequency generator (20) for applying a voltage between the electrode (18) and the housing, wherein the outlet of the nozzle channel (12) is constructed as a narrow slot (32), which extends transversely to the longitudinal axis of the nozzle channel.

Abstract: A rod-like or thread-like material is subjected to a plasma treatment by passing the material coaxially through a plasma nozzle while generating plasma therein.

Abstract: A method of removing organic impurities from a surface of a substrate that is used for feeding or processing web material, wherein a jet of an atmospheric plasma is directed onto the surface of the substrate.

Abstract: A method for producing wettable plastic film (58, 60; 64), for which the plastic material is extruded from a die (42; 66) and stretched and the surface of the plastic material is subjected to a pretreatment, wherein the pretreatment is carried out by means of a beam (36) of an atmospheric plasma in one working cycle with the extrusion.

Abstract: A mechanism for plasma surface treatment includes a rotating head having at least one eccentrically disposed plasma nozzle for generating a plasma jet directed in parallel with the axis of rotation. The nozzle includes a swirl system for swirling the plasma jet.

Abstract: Fixture for the heat-sealing of foils along a weld joint, including a plasma nozzle (10) and a conveying device which generates a relative movement between the plasma nozzle and the foil layers (42, 44) along the weld joint.