A plasma reactor for a Dielectric Barrier Discharge (DBD) system, the system includes one or more plasma reactor modules, the one or more plasma modules are configured as transmission lines. A duration of a rise-time and/or a fall-time of a voltage pulse, fed into a first end of the one or more reactor modules is shorter than a run-time of the voltage pulse from a first end of the one or more reactor modules to a second end of the one or more reactor modules.

A pulse generator and a method for generating pulses are provided. The pulse generator includes at least one first transmission line with a first and a second end; at least one second transmission line with a first and a second end; a voltage source; a switching unit; and a charge control device. The charge control device is adapted to connect an output of the voltage source to the first end of the at least one first transmission line. A first switch Si in the switching unit is adapted to connect or disconnect the second end of the at least one first transmission line to the first end of the at least one second transmission line for predetermined time spans. A second switch S2 in the switching unit is adapted to connect or disconnect the first end of the at least one second transmission line to a fixed potential. The opening or closing states of Si and S2 in the switching unit are mutually exclusive. A second end of the at least one second transmission line is adapted to be connected to a load. The switching unit is further adapted to operate the first switch, S1, and the second switch, S2, in a predetermined order to alter a pre-charging state of the first transmission line.

A system for evaluating a bond includes first and second electrodes. A dielectric material layer is positioned at least partially between the first and second electrodes. A power source is connected to the first and second electrodes. The power source is configured to cause the first and second electrodes to generate an electrical arc. The electrical arc is configured to at least partially ablate a sacrificial material layer to generate a plasma.

The invention relates to an electrode arrangement to be coupled to a high voltage source for a dielectric barrier discharge plasma treatment of a to be treated tissue of a patient, which treatment surface is used as a counter electrode, having a plasma generating to be coupled to the high voltage source via a first lead; a dielectric shielding the plasma generating from the surface to be treated; a spacer defining a structured surface on a side of said arrangement facing a surface to be treated, said plasma generating being fitted to the object to be treated and brought in contact with the dielectric, a driver circuit for driving the plasma generating coupled to said high voltage source, wherein the driver circuit drives the plasma generating in a first voltage; said driver arranged to simultaneously drive the plasma generating at a second voltage, wherein first and second voltages combined do not exceed a range of 3-8 k V.

A fluid control system includes a dielectric-barrier discharge (DBD) device, and processing circuitry. The processing circuitry is configured to obtain a streamwise length scale of a fluid flowing over a surface. The processing circuitry is also configured to obtain a convective time scale of the fluid flowing over the surface. The processing circuitry is also configured to operate the DBD device, based on the streamwise length scale and the convective time scale, to adjust a flow property of the fluid.

In the present invention, a high-voltage side electrode constituent part includes a dielectric electrode and metal electrodes formed on the upper surface of the dielectric electrode. The dielectric electrode has a structure in which a film thickness is continuously changed along an X direction. That is, the film thickness of the right end of the dielectric electrode is set to a thickness dA1; and the film thickness of the left end is set to a thickness dB1 (>dA1), and is continuously increased from the right end to the left end along the X direction.

A single non-thermal atmospheric plasma generation device is used to detect and analyze vital fields of a living subject to determine the presence of a condition, such as an illness or injury, and responsively modify characteristics of the plasma to treat, heal, or alleviate the condition. The device includes a capacitance dielectric discharge array of plasma emitters, and a controller having a power supply, a transformer, and circuit components for driving the transformer at a resonant frequency of the plasma emitters to cause the plurality of plasma emitters to ionize surrounding air and produce the non-thermal plasma. The resonant frequency is around 60 GHz and harmonics thereof. A receiver of the device recovers frequency mixing products from the plasma, which are extracted by signal processing circuitry; signals in the VHF and UHF bands are extracted and analyzed to determine whether signatures of particular vital fields are present.

A system for generating cold plasma is presented, suitable for use in in-vivo treatment of biological tissue. The system comprising: a control unit connectable to an elongated member at a first proximal end of the elongated member. The elongated member comprises a plasma generating unit at a second distal end thereof and gas and electricity transmission channels extending from said first proximal end towards said plasma generating unit. The control unit comprises a gas supply unit configured to provide predetermined flow rate of selected gas composition through said gas transmission channel and a power supply unit configured to generate selected sequence of high-frequency electrical pulses, typically in mega Hertz range, directed through said electricity transmission channel, thereby providing power and gas of said selected composition to the plasma generating unit for generating cold plasma.

The invention relates to an electrode arrangement for forming a dielectric barrier plasma discharge between an electrode (1) supplied with an AC high voltage by a control device (20) and a treatment surface (21) of an electrically conductive body (22), said arrangement functioning as a ground electrode, wherein a dielectric material (8) completely covets the electrode (1) up to the treatment surface (21) and forms a contact side for the surface (21). The electrode arrangement permits effective and homogeneous formation of the plasma (23), in particular for large treatment surfaces (21), because the electrode (1) consists of at least two electrode portions (2, 3) arranged next to one another at the same distance (6) from the contact side and insulated from one another by the dielectric material (8), and because adjacent electrode portions are supplied by the control device with compensating partial AC voltages which are mirror-inverted in terms of the waveform and the voltage level.

A plasma generator includes an AC power supply, a power supply electrode and a ground electrode, one of which is disposed in a gas flow path and the other of which is a conductive wall constituting the gas flow path, an inflexible connection member configured to electrically connect the AC power supply and the power supply electrode, and an insulating material (power supply side insulating material, ground side insulating material) covering a side of one of the power supply electrode and the ground electrode, the side facing the other electrode.