COORDINATE MEASURING SYSTEM

• Main Authors: VALPERTZ, Frank, ISELI, Claudio
• Format: Patent
• Language: English; French; German
• Published: 28.06.2023
• Subjects: MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

The invention pertains to a coordinate measuring system for determining 3D coordinates of an object (2), comprising a coordinate measuring device (1) comprising an arrangement of sensors configured to generate measurement data from which 3D coordinates of measurement points on the object are derivable, and a computing device configured to determine, based on the measurement data, 3D coordinates of the measurement points, and for storing nominal data of the object in a data storage, the nominal data comprising nominal dimension data of the object for a pre-defined temperature, wherein the nominal data comprises one or more expansion coefficients of the object, the coordinate measuring system comprises at least one temperature sensor (5A, 5B) that is configured to determine actual temperature values of the object, the at least one temperature sensor is configured to generate temperature data based on the determined actual temperature values and to provide the temperature data to the computing device; and the computing device is configured to determine, based on the determined 3D coordinates of the measurement points, on the provided temperature data and on the expansion coefficients, tempered coordinates of the object, wherein the determined actual temperature values of the object deviate from the pre-defined temperature, and the tempered coordinates are three-dimensional coordinates that the object would have at a tempered state in which the object uniformly has the pre-defined temperature.