Disclosed is a system for reducing germs by means of plasma. To this end, a piezoelectric transformer is associated with a dielectric film. The peripheral edge of the dielectric film encloses an area to be sterilized, a cavity being formed thereby. A high-voltage end of the piezoelectric transformer is facing a side of the dielectric film facing away from the cavity. The plasma is ignited within the cavity.

An assembly for the treatment of wounds comprising a device for generating a plasma, or an excited gas or gas mixture, respectively. A covering is used to cover a wound area. A first conduit connects the device and the covering and a second conduit connects the covering and a pump. The device is arranged within a housing comprising an opening. The device comprises a piezoelectric transformer having a high-voltage end for generating the plasma, and is arranged within the housing such that the high-voltage end is directed towards the opening. The plasma or the excited gas or gas mixture, respectively, is generated in a region of the opening of the housing. A wound cover comprising a means for guiding the plasma across the wound area is arranged between the covering and the wound area.

The invention relates to an air-conditioning device for a space to be air-conditioned. The air-conditioning device has a housing including an air supply and an air discharge. In the housing, a flow path is formed between the air supply and the air discharge. In the flow path, at least one heat exchanger, a blower, and a means for generating an excited gas are provided. Furthermore, a surface coating is provided in the flow path, which is configured for the catalytic decomposition of the ozone content of the excited gas, and which is arranged downstream of the means for generating the excited gas.

In an embodiment a device includes a first housing in which a piezoelectric transformer is arranged and a second housing in which a control circuit is arranged, the control circuit configured to apply an input voltage to the piezoelectric transformer, wherein the piezoelectric transformer is configured to ionize a process medium, and wherein the device is configured to provide a circulating air operation so that the process medium is guided from the piezoelectric transformer through a catalytic converter and then back to the piezoelectric transformer and generate a non-thermal atmospheric pressure plasma.

Method for bonding a substrate surface of a substrate to an adhesive surface of an adhesive by generating a low-temperature plasma in a low-temperature plasma generator, activating the substrate surface and/or the adhesive surface with the low-temperature plasma, and thereafter layering the substrate surface and the adhesive surface atop one another to form a bonded assembly.

A low-power, compact piezoelectric particle emitter for emitting particles such as X-rays and neutrons. A piezoelectric transformer crystal receives an input voltage at an input end and generates a higher output voltage at an output electrode disposed at an output end. The emitter is in a vacuum and the output voltage creates an electric field. A charged particle source is positioned relative a target such that charged particles from the charged particle source are accelerated by the electric field toward the target. Interaction between the accelerated charged particles and the target causes one of X-rays and neutrons to be emitted.

In an embodiment A device includes a first housing, in which a first device configured to generate electric fields with high field strengths is arranged and a second housing, in which a control circuit is arranged, wherein the control circuit is configured to apply an input voltage to the first device, wherein the device is configured to produce a non-thermal atmospheric pressure plasma.

The present invention relates to a piezoelectric transformer (1) which is divided in the longitudinal direction (L) into an input region (2) and an output region (3), wherein electrodes (4) and piezoelectric material (5) are alternately stacked in the input region (2) and an alternating voltage can be applied to the electrodes (4) in the input region (2), wherein the output region (3) comprises piezoelectric material (9) which effectuates the build-up of an electrical field when alternating voltage is applied in the input region (2), wherein the piezoelectric transformer (1) has an output-side end face (10) which faces away from the input region (2), and lateral edges (13) which extend in the longitudinal direction (L), and wherein the piezoelectric transformer (1) is designed for ionizing atoms or molecules at the output-side end face (10), thereby avoiding ionization of atoms or molecules at the lateral edges (13)

A toroidal plasma is generated without voltage input. It can be produced using a pressurized water jet directed at a non-conductive, dielectric plate. Systems and methods employing the setup are described in which energy is generated and optionally harvested in addition to corona light.

An atmospheric-pressure plasma treatment system includes a plasma source including at least one electrode, a gas in a gas chamber, and an AC power supply that supplies power to the at least one electrode to form a plasma in the gas. A radial-flow surface has a jet nozzle through which the gas flows and the radial-flow surface has a surface profile that conforms to a nonplanar treatment surface of an object. The radial-flow surface is separated from the nonplanar treatment surface by a gap that is less than 2 times a diameter of the jet nozzle so that the gas flows radially outward from the nozzle and between the radial-flow surface and the nonplanar treatment surface.