Abstract: The present invention relates to a screw nut equipped with sensors (2, 3) on its lateral surfaces.

Abstract: The invention relates to a mechanical connection component for connecting a first element (1) to a second element (2). The connection component can be brought from an untensioned position into a tensioned position by exerting a clamping force (F), wherein a pressure pin (7) with a head portion (8) is arranged in a recess of the connection component (5), and a pressure indicator (9) is arranged or can be arranged in the region of the head portion (8). The head portion (8) is arranged so as to exert pressure onto the pressure indicator (9) in the untensioned position of the connection component (5) and not exert any pressure onto the pressure indicator (9) or exert a reduced pressure in comparison to the untensioned position when the connection component (5) is in the tensioned position.

Abstract: A capacitive distance sensor for determining distances from an object, wherein the distance sensor has at least one sensor electrode and at least one compensation electrode. Deviations from an ideal parallel orientation of distance sensor and object and/or errors caused by capacitive edge effects can be compensated by means of the compensation electrode.

Abstract: In a liquid damper for reducing vertical and/or horizontal vibrations in a building or machine structure, having at least two chambers (1, 2) partly filled with liquid (3), which communicate with one another at their lower ends, whereby at least one chamber (1) is sealed off in airtight manner at its upper end, so that a sealed air space (V0) is formed above the liquid (3), and at least one other chamber (2) is at least partly open at its upper end, the sealed air space (V0) is divided into at least two partial air spaces (V01 to V0n), whereby one partial air space (VN) lies directly above the liquid (3), and one or more partial air spaces (V02 to V0n) are connected with the partial air space (V01) that lies directly above the liquid (3), or with the adjacent partial air space (V02 to V0n), in each instance, by way of openings (7), whereby these openings (7) can be closed off, to form a seal, independent of one another.