摘要:
The invention relates to a device and a method for the treatment of surfaces with a plasma produced under atmospheric pressure. The device according to the invention is formed as a portable handheld unit and comprises a plasma nozzle (16) for producing a plasma jet (18), which comprises a nozzle opening (17) and at least one electrode and counter-electrode pair (27, 28) arranged upstream of the nozzle opening, the effective electrode surfaces of which pair of electrodes each have a dielectric coating (29, 30), the electrode (27) and the counter-electrode (28) defining between them a working space (34) in which a working gas can be at least partially ionized by means of a dielectric barrier gas discharge, a high-voltage generator (19, 20), which is electrically connected to the electrode and counter-electrode pair (27, 28), a feeding means (15), which produces a gas flow of the working gas from a working gas source into the working space (34) and through the nozzle opening (17), the working gas source being ambient air, and a mains-independent energy source (12) for supplying the high-voltage generator (19, 20) and the feeding means (19).
摘要:
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).
摘要:
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).
摘要:
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.