Abstract: A measurement apparatus for alternating currents and voltages of a physical plasma ignited by applying an alternating high voltage from an alternating high voltage source to a plasma electrode via a high voltage line comprises a current transformer having a measurement winding on a ring core and a cable guide guiding the high voltage line through the ring core. A first measurement alternating voltage dropping over a measurement resistor connected between ends of the measurement winding is a first strictly monotonic increasing function of an amperage of the alternating currents flowing through the high voltage line. A second measurement voltage dropping over a measurement capacitance connected between a center tap of the measurement winding and a reference potential connector is a second strictly monotonic increasing function of an amplitude of the alternating high voltage applied to the plasma electrode with respect to a reference potential at the reference potential connector.

Abstract: A device serves for generating physical plasma by means of dielectric barrier discharges with respect to a surface of an object. The device comprises a common high voltage terminal, and a plurality of electrode bodies that are capacitively coupled to the common high voltage terminal, that comprise an exposed electrode surface and a distal end each, and that are, in a main extension direction, elongated in parallel to one another towards their distal ends. The device further comprises spacers made of dielectric a d arranged at the distal ends of the electrode bodies, the spacers projecting beyond the exposed electrode surfaces of the electrode bodies by 1.0 mm to 5.0 mm in the main extension direction. The device may be part of a hair loss therapy apparatus.

Abstract: The invention relates to a low-pressure coating system and a method for coating particle or fibre collectives by means of physical or chemical vapour phase deposition. A deagglomeration unit is used, by means of which the particle or fibre collective is separated and then coated. These particles are used for example as active material for batteries and capacitors and as 3D printing powder or colour pigments. The fibres are used for example for textiles, membranes, filters or composite materials.

Abstract: A coating method is provided, in which at least one emulsion and/or one solution is applied at least to a first partial area of a surface of a component, said emulsion and/or solution containing at least one layer-forming substance, and then the component is heat-treated, wherein at least one second partial area of the first partial area is subsequently exposed to a plasma, wherein the carbon content of the coating decreases to less than about 80% or less than about 75% or less than about 70% or less than about 60% of the initial value prior to the plasma treatment. A workpiece and a method for the production thereof is provided.

Abstract: To dry a hand with fingertips and a carpus, the palmar aspect and the dorsal aspect of the hand are blown dry, starting from the fingertips, by a pair of planar gas jets, wherein the gas jets of the pair run towards each other in the direction from the carpus to the fingertips at an angle of less than 180°. By applying high-voltage AC pulses with respect to ground to dielectrically shielded electrodes arranged next to both planar gas jets, direct discharges are obtained across the hand on the palmar aspect thereof and on the dorsal aspect thereof.

Abstract: A coating method is provided, in which at least one emulsion and/or one solution is applied at least to a first partial area of a surface of a component, said emulsion and/or solution containing at least one layer-forming substance, and then the component is heat-treated, wherein at least one second partial area of the first partial area is subsequently exposed to a plasma, wherein the carbon content of the coating decreases to less than about 80% or less than about 75% or less than about 70% or less than about 60% of the initial value prior to the plasma treatment. A workpiece and a method for the production thereof is provided.

Abstract: To dry a hand with fingertips and a carpus, the palmar aspect and the dorsal aspect of the hand are blown dry, starting from the fingertips, by a pair of planar gas jets, wherein the gas jets of the pair run towards each other in the direction from the carpus to the fingertips at an angle of less than 180°. By applying high-voltage AC pulses with respect to ground to dielectrically shielded electrodes arranged next to both planar gas jets, direct discharges are obtained across the hand on the palmar aspect thereof and on the dorsal aspect thereof.

Abstract: A device (1) for plasma treatment comprises an electrode (2) having a surface (14) covered by a dielectric barrier (3), and an AC high voltage source (6) for applying an AC high voltage to the electrode (2) to bring about a dielectric barrier discharge (9) in a gas (10) at atmospheric pressure present in front of the dielectric barrier (3) in order to generate a plasma. To the end of generating the plasma even without a counter-electrode for the electrode (2), pointed tips are distributed over the surface (14) of the electrode (2), these pointed tips pointing towards the gas (10) in front of the dielectric barrier (3), whereas the dielectric barrier (3) has a smooth outer surface (15) facing the gas (10).

Abstract: In order to treat a biological material (1) containing living cells with a plasma (4) generated by a gas discharge at atmospheric pressure (9) an electrode (3) is arranged at a distance to the biological material (1). Further, a solid body dielectric (2) is arranged between the electrode (3) and the biological material (1), directly in front of the electrode (3) and at a distance to the biological material (1). Then a high alternating voltage consisting of separated high voltage pulses of alternating polarity is applied to the electrode (3) for igniting and maintaining a dielectric barrier gas discharge within a region between the dielectric (2) and the biological material (1).

Abstract: The invention relates to a device and a method for the treatment of surfaces with a plasma produced under atmospheric pressure.

Abstract: An image converter (1) for the visualizing an intensity distribution of an electromagnetic radiation (3), the image converter (1) comprises a converter layer (2), which at least partly converts the incident electromagnetic radiation (3) into heat and hence converts the intensity distribution of the incident electromagnetic radiation (3) into a temperature distribution over the converter layer (2), and a heating device (5, 7) for increasing the temperature of the converter layer (2).

Abstract: A device (1) for plasma treatment comprises an electrode (2) having a surface (14) covered by a dielectric barrier (3), and an AC high voltage source (6) for applying an AC high voltage to the electrode (2) to bring about a dielectric barrier discharge (9) in a gas (10) at atmospheric pressure present in front of the dielectric barrier (3) in order to generate a plasma. To the end of generating the plasma even without a counter-electrode for the electrode (2), pointed tips are distributed over the surface (14) of the electrode (2), these pointed tips pointing towards the gas (10) in front of the dielectric barrier (3), whereas the dielectric barrier (3) has a smooth outer surface (15) facing the gas (10).

Abstract: The invention relates to an image converter (1) for the visualizing an intensity distribution of an electromagnetic radiation (3), the image converter (1) comprising a converter layer (2), which at least partly converts the incident electromagnetic radiation (3) into heat and hence converts the intensity distribution of the incident electromagnetic radiation (3) into a temperature distribution over the converter layer (2), and a heating device (5, 7) for increasing the temperature of the converter layer (2).

Abstract: An apparatus for preparing a finger nail or a toe nail for a coating in that a gas discharge is ignited above the nail at atmospheric pressure comprises an electrode to be arranged above the nail, and a high voltage generator generating a high voltage to be applied to the electrode arranged above the nail for igniting the gas discharge between the electrode and the nail.

Abstract: For analysis and/or monitoring the light intensity distribution over the cross-section of a laser beam (1), the laser beam (1) is reflected with a laser mirror (2), and local thermal expansions of the laser mirror (2) caused by different light intensities incident on the laser mirror (2) are detected.

Abstract: In order to treat a biological material (1) containing living cells with a plasma (4) generated by a gas discharge at atmospheric pressure (9) an electrode (3) is arranged at a distance to the biological material (1). Further, a solid body dielectric (2) is arranged between the electrode (3) and the biological material (1), directly in front of the electrode (3) and at a distance to the biological material (1). Then a high alternating voltage consisting of separated high voltage pulses of alternating polarity is applied to the electrode (3) for igniting and maintaining a dielectric barrier gas discharge within a region between the dielectric (2) and the biological material (1).

Abstract: An apparatus for preparing a finger nail or a toe nail for a coating in that a gas discharge is ignited above the nail at atmospheric pressure comprises an electrode to be arranged above the nail, and a high voltage generator generating a high voltage to be applied to the electrode arranged above the nail for igniting the gas discharge between the electrode and the nail.

Abstract: An apparatus for treating the outer surface of a metal wire being moved through the apparatus along a direction of longitudinal extension of the metal wire has two electrodes arranged at a distance in the direction of longitudinal extension of the metal wire, a gas room being arranged between the outer surface of the metal wire to be treated and said electrodes, a dielectric shielding for said electrodes shielding said electrodes towards the metal wire, and an alternating voltage generator generating an alternating high voltage between said two electrodes to provide a dielectric barrier discharge in said gas room above the outer surface of the metal wire. The metal wire serves as an intermediate electrode between said two electrodes.

Abstract: The invention relates to a method for modifying a wooden surface (7) where an electrode (1) is arranged opposite to the wooden surface (7) to be modified, and an alternating high voltage is applied to the electrode (1), in order to cause the discharge (11) between the wooden surface (7) and the electrode (1) under atmospheric pressure. A dielectric layer is arranged between the electrode (10) and the wooden surface as a counter-electrode (7) to be modified, and the alternating high voltage is applied with a frequency greater than 600 Hz.

Abstract: For analysis and/or monitoring the light intensity distribution over the cross-section of a laser beam (1), the laser beam (1) is reflected with a laser mirror (2), and local thermal expansions of the laser mirror (2) caused by different light intensities incident on the laser mirror (2) are detected.