Abstract: An apparatus for generating a plasma above a treatment object. The apparatus includes a plasma-generating element such that during operation the plasma is generated by the plasma-generating element. The apparatus further includes a sealing element attached to the plasma-generating element. The sealing element has a cavity and is configured to form a closed volume with a part of the treatment object, so that at least a part of the cavity is part of the closed volume and, during operation of the apparatus, the plasma is generated in the closed volume. The sealing element includes a reception region that is configured so that a part of the treatment object can be inserted into the reception region. A method is also disclosed for performing a plasma treatment to a treatment object using the apparatus.

Abstract: In an embodiment a sensor system includes a housing, an electronic circuit and an ultrasonic distance sensor, wherein the electronic circuit and the ultrasonic distance sensor are arranged in the housing, and wherein the sensor system is configured to measure a distance between the sensor system and a surface of a material in a container by an echo propagation time of an ultrasonic burst in air.

Abstract: The invention relates to a device comprising an electroceramic component (1) having a first area (2) and a second area (3), a potting compound (11) at least partially surrounding the electroceramic component (1), and a sleeve-shaped housing (15) which at least partially surrounds the potting compound (11), the housing (15) having, in a first housing section (15a) which surrounds the potting compound (11) in the first area of the electroceramic component (1), a material wherein the thermal conductivity of said material is greater than the thermal conductivity of a material of the housing (15) in a second housing section (15b), and wherein the housing (15) in the second housing section (15b) surrounding the potting compound (11) in the second area of the electroceramic component (1) comprises a non-conductive material.