Method for measuring a work piece, calibration method and coordinate measuring device

摘要

A work piece is measured by at least one point of a surface of the work piece being sampled by a feeler. The feeler exerts a probing force on the surface and the feeler is deflected relative to a mounting of the feeler. On the basis of the deflection, a position of the point of the surface is determined. A directional dependence of a flexibility of the feeler is determined and/or is known. The feeler and the work piece are positioned and/or oriented relative to each other, while taking into consideration the directional dependence, such that during sampling of the point of the surface unintentional slipping of the feeler on the surface does not occur, or occurs only with low probability, or an unintentional deviation of the feeler from an intended path on the surface does not occur, or occurs only with low probability.

主权项

1. A coordinate measuring device, comprising:
a probe; and a controller for controlling a method for measuring a workpiece, said controller:
controlling said probe to probe at least one point on a surface of the workpiece, said probe exerting a probe force on the surface of the workpiece and said probe is deflected relative to an attachment of said probe;determining a position of the point on the surface on a basis of a deflection of said probe;determining a direction-dependency of flexibility of said probe prior to measuring the workpiece;in order to measure the workpiece, performing at least one of positioning or aligning said probe and the workpiece relative to one another, taking into account the direction-dependency, wherein a deflection direction of said probe and a direction of the probe force being different, such that said probe does not inadvertently slide on the surface when probing the point on the surface, or said probe does not inadvertently depart from an intended path on the surface.