Patent ID: 7983868
Filing Date: 2011-07-19
Classification: G05B

Abstract:
1. A method of evaluating measured data points of a manufactured test part from a measuring instrument against geometrical tolerances for accepting or rejecting the manufactured test part comprising the steps of: associating the measured data points of the manufactured test part from the measuring instrument with uncertainty ranges, modifying the geometrical tolerances based on the uncertainty ranges of the measured data points to define local acceptances zones for the measured data points, collectively moving the measured data points relative to the local acceptance zones, evaluating the locations of the measured data points with respect to the local acceptance zones at different relative positions between the measured data points and the local acceptance zones by repeatedly adjusting the relative positions in an iterative manner to approach a relative position at which the measured data points collectively fit within the local acceptance zones, and accepting the manufactured test part when the measured data points collectively fit within the local acceptance zones and rejecting the manufactured test part when the measured data points do not collectively fit within the local acceptance zones.