METHOD FOR CONTACTLESS DETECTION OF CURVATURE OF SURFACE OF BUILDING STRUCTURE Russian patent published in 2015 - IPC G01B11/255 

FIELD: measurement equipment.

SUBSTANCE: invention relates to methods of measurement control of quality of surface of building structures. The method of contactless detection of curvature of building structure surface includes synchronous measurement with the help of a system of distance sensors fixed on the common base, arranged relative to each other at the fixed angle, distances from each sensor from their reference point at the crossing of the axis of the sensor with the structure surface, and transmission of received data into a unit of analysis and processing of information, where curvature is calculated. At the same time the surface of the structure remains fixed. Distances are measured with a portable system from three inclined and one high-altitude laser range finders, equidistant from the top of the imaginary regular triangular pyramid and directed during measurement towards the side of the structure surface so that axes of inclined range finders match side ribs, having the angle of inclination of 55-85°, and the axis of the high-altitude range finder - with height of this pyramid, all angles of the base of which by their tops are matched with the surface of the structure.

EFFECT: contactless detection of curvature of surface of fixed objects from the distance of more than 1 m.

2 cl, 3 dwg