Patent ID: 8931183
Filing Date: 2015-01-13
Classification: G01B

Abstract:
1. A method of operating coordinate positioning apparatus having a measurement probe, the method comprising the following steps in any suitable order: (i) taking a first part in a series of nominally identical parts, at least a first reference geometrical property associated with one or more features of the first part being known, (ii) using the coordinate positioning apparatus to measure the one or more features of the first part and determining therefrom a first measured geometrical property that corresponds to the first reference geometrical property, (iii) determining a first property correction value that describes a difference between the first reference geometrical property and the first measured geometrical property, (iv) using the coordinate positioning apparatus to measure the one or more features of a plurality of further parts in the series of nominally identical parts and, for each further part, determining a further measured geometrical property that corresponds to the first reference geometrical property, and (v) applying the first property correction value to each further measured geometrical property.