Comparative study between two three-dimensional metrology software

This article presents a comparative study between two three-dimensional metrology software, the Metrosoft software of the "Metromec" machine of the National Polytechnic School of Oran and the Geoverif experimental software developed by PAIREL, SYMME Laboratory. Both softwares use the least squares fit criterion, which is the most commonly used criterion on Coordinate Measuring Machine (CMM). We will present in this work, an application to measure the defect form (flatness) of an engine bearing, following three swings. We will also present a probing strategy in such a way as to have a cloud of points that is fairly representative of the real surface of the work piece