Abstract: A device for determining a layer thickness in a multilayer film includes a radiation source configured to generate an electromagnetic primary radiation, a detector configured to detect an electromagnetic secondary radiation emitted by the multilayer film, the secondary radiation being induced by an interaction of the primary radiation with the multilayer film, and a first contact block transparent to the electromagnetic primary radiation and having a first contact surface for creating contact with the multilayer film. The radiation source is arranged on the first contact block in such a way that the electromagnetic primary radiation is guided from the first contact block onto the multilayer film.

Abstract: The invention relates to a method for determining the thickness of multi-layer films (13) comprising layers consisting of various non-conductive materials. According to said method, the thickness of the multi-layer film (13) is measured by a first sensor (17) and a second sensor (16) and optionally additional sensors. The first sensor (17) measures the profile of the total thickness in a short cycle with a duration of approximately 1-2 minutes, but with a large measuring error margin. The second sensor (16) measures the profile of the total thickness with a small measuring error margin but in a long cycle with a duration of approximately 10 to 30 minutes. A correction profile for the first sensor (17) can be calculated by comparing the two thickness profiles.

Abstract: The apparatus is suited to reduce the friction between two bodies (1, 2) moving relative to each other. The two bodies (1, 2), which move relative to each other, can contact each other constantly or occasionally or have a small distance from one another of, for example, up to one millimeter. The distance can vary. With the relative movement of both bodies (1, 2), for example, the one body can be a sensor (1) which is firmly installed, and the second body can be a foil (2), which moves with considerably constant speed. The device has a vibration device (3, 4, 5, 6) for vibrating at least one of the bodies (1, 2). The vibration movements of the vibrated bodies can have any pattern.

Abstract: The invention relates to a method for determining the thickness of multi-layer films (13) comprising layers consisting of various non-conductive materials. According to said method, the thickness of the multi-layer film (13) is measured by a first sensor (17) and a second sensor (16) and optionally additional sensors, whereby all the sensors take a measurement at the same location under the same conditions if possible. The first sensor (17) and the second (16) or additional sensors generate different measured values for layers of the multi-layer film (13) of the same thickness consisting of the same material (13). The measured signals of the sensors (16, 17) are fed to a computer (18), which determines the total thickness of the multi-layer film (13) and/or the thickness of the individual layers of the multi-layer film (13) from the different measured values of the first sensor (17) and the second (16) or additional sensors.

Abstract: The apparatus is suited to reduce the friction between two bodies (1, 2) moving relative to each other. The two bodies (1, 2) which move relative to each other, can contact each other constantly or occasionally or have a small distance from one another of, for example, up to one millimeter. The distance can vary. With the relative movement of both bodies (1, 2), for example, the one body can be a sensor (1) which is firmly installed, and the second body can be a foil (2), which moves with considerably constant speed. The device has a vibration device (3, 4, 5, 6) for vibrating at least one of the bodies (1, 2). The vibration movements of the vibrated bodies can have any pattern.

Abstract: The device 1 for positioning the measuring element of a measuring apparatus comprises a traverse 14 on which the measuring element is arranged. The device further comprises a track 11 on which bearings 12, 13 run, and on which the traverse 14 is held by means of bearings 124, 125. The measuring element of the measuring apparatus can be positioned radially in relation to the track 11 and along the track 11. The traverse 14 comprises multiple components, wherein the components 141, 142 of the traverse 14 are interconnected with one or several bearings 143, or the components 141, 142 of the traverse 14 are held inside each other so as to be telescopically slidable. Radial positioning takes place in that the angle ?14 between the components 141, 142 of the traverse 14 is changed or in that in the case of a telescopic traverse 14, which constitutes a chord in the track 11, the length is altered.

Abstract: The object of positioning a measurement probe (5) very close to but not in contact with moving measured material (9) is solved in accordance with the invention in that air is blown through a nozzle in the measurement probe between the probe and the material being measured, and in that the pressure in the flowing medium between the measurement probe and the material being measured is measured, and from this a regulation signal is derived for the spacing. The air cushion which forms between the material being measured and the measurement probe, on the one hand, prevents mutual contact and additionally serves as a medium in the measuring system for the measurement of the spacing.