Patent ID: 9671257
Date: 2017-06-06
CPC Classifications: G01B,G01D

Claim:
1. A configuration, comprising: a rotational device for measuring coordinates of a workpiece via a coordinate measuring machine and/or for machining the workpiece, said rotational device containing a first part and a second part having rotational mobility about a rotational axis relative to said first part, one of said first part or said second part configured either to hold the workpiece or to hold a probe for sensing the workpiece, a probe head of the coordinate measuring machine, a coordinate measuring apparatus of the coordinate measuring machine, or a machine tool for machining the workpiece; a plurality of sensors; a measuring body assigned to each of said sensors and being defined as an assigned measuring body, wherein what applies to each of said sensors and to said assigned measuring body is that said assigned measuring body is disposed on one of said first part or said second part and said sensors are disposed on the other of said first part or said second part, each of said sensors generating a measurement signal corresponding to a position of said assigned measuring body and hence corresponding to a relative position of said first part and said second part; an evaluation apparatus, said plurality of sensors disposed in such a way and said evaluation apparatus being configured in such a way that said evaluation apparatus determining deviations from an ideal rotational movement of said first part and of said second part relative to one another about the rotational axis from measured values of said plurality of sensors when said rotational device is in operation, namely when the workpiece or the probe, the probe head, the coordinate measuring apparatus or the machine tool is rotated by said rotational device about the rotational axis, to be precise determining the deviations in respect of at least two different degrees of freedom of movement, namely two rotational degrees of freedom about mutually perpendicular directions, which each extend perpendicular to the rotational axis; the configuration being configured to correct the deviations when said rotational device is in operation; and said measuring body is configured as an additional material region of said first part or said second part not required for a rotational function of said rotational device and/or at least one of said sensors is disposed on said additional material region of said second part or said first part not required for the rotational function of said rotational device.