Abstract: The invention relates to a method and a device for determining the temperature and moisture of a structure, having at least one temperature sensor and at least one moisture sensor, wherein a water-vapor diffusion-impermeable volume is formed on the surface of the structure, and, after reaching a state of equilibrium, the temperature and moisture is measured with the at least one temperature sensor and the at least one moisture sensor in the water-vapor diffusion-impermeable volume, and used for determining the temperature and moisture in the structure. According to the present invention, the water-vapor-diffusion equivalent air layer thickness of the water-vapor diffusion-impermeable volume is at least 1000 m, and the temperature and moisture of the ambient air are measured.

Abstract: The invention relates to a device for measuring surface dimensions of an object, comprising an elongate flexible material piece, which is supported on a roller in such a way that the material piece can be unwound and on the end of which a probe is provided, wherein the roller is connected to a base of the device in such a way that the roller can be rotated about a vertical axis, and wherein two sensors are provided, by means of which the unwound length of the material piece and the angle of the roller with respect to the base can be detected, wherein the base consists of a planar bottom plate and the roller is arranged on the side facing away from the contact surface of the bottom plate.

Abstract: A grinding tool carrier (1) having substantially circular grinding discs (2), on which an abrasive covering is detachably secured, wherein chip-removing cutters (4) are arranged on the grinding tool carrier (1) and between the grinding discs (2).

Abstract: The invention relates to a device for measuring surface dimensions of an object, comprising an elongate flexible material piece, which is supported on a roller in such a way that the material piece can be unwound and on the end of which a probe is provided, wherein the roller is connected to a base of the device in such a way that the roller can be rotated about a vertical axis, and wherein two sensors are provided, by means of which the unwound length of the material piece and the angle of the roller with respect to the base can be detected, wherein the base consists of a planar bottom plate and the roller is arranged on the side facing away from the contact surface of the bottom plate.

Abstract: A grinding tool carrier (1) having substantially circular grinding discs (2), on which an abrasive covering is detachably secured, wherein chip-removing cutters (4) are arranged on the grinding tool carrier (1) and between the grinding discs (2).

Abstract: A floor sanding machine (1) has a frame (1) which carries on its underside a motor-driven, vertically adjustable sanding plate (4) with a sanding disk, an annular dust suction nozzle (11) which surrounds the sanding plate, and two front running wheels (13) and a rear wheel (14) which support the frame. A controller (7) analyzes the signals from a laser scanner (18) for measuring the distance from the sides and front of the sanding machine to the wall and controls by means of a servo system (17) the rear wheel designed as a tail wheel and a rear wheel driving motor (16) for moving the sanding machine. The pressure applied by the sanding plate, the sanding plate driving motor (9) and a sanding dust suction turbine are also controllable by the controller. The sanding dust suction turbine is arranged outside the surface to be sanded, and the dust suction nozzle of the sanding machine is connected by a suspended suction line (12) to a dust bag of the suction turbine.