title: Integration of Error Compensation of Coordinate Measuring Machines into Feature Measurement: Part II-Experimental Implementation.
abstract: Coordinate measuring machines (CMM) are main instruments of measurement in laboratories and in industrial quality control. A compensation error model has been formulated (Part I). It integrates error and uncertainty in the feature measurement model. Experimental implementation for the verification of this model is carried out based on the direct testing on a moving bridge CMM. The regression results by axis are quantified and compared to CMM indication with respect to the assigned values of the measurand. Next, testing of selected measurements of length, flatness, dihedral angle, and roundness features are accomplished. The measurement of calibrated gauge blocks for length or angle, flatness verification of the CMM granite table and roundness of a precision glass hemisphere are presented under a setup of repeatability conditions. The results are analysed and compared with alternative methods of estimation. The overall performance of the model is endorsed through experimental verification, as well as the practical use and the model capability to contribute in the improvement of current standard CMM measuring capabilities.
authors.affiliation: Department of Mechanical Engineering, Chemistry and Industrial Design, Universidad Politécnica de Madrid, Ronda de Valencia 3, Madrid 28012, Spain. roque.calvo@upm.es.
authors.forename: Roque
authors.initials: R
authors.lastname: Calvo
authors.affiliation: Department of Mechanical Engineering, Chemistry and Industrial Design, Universidad Politécnica de Madrid, Ronda de Valencia 3, Madrid 28012, Spain. r.damato@upm.es.
authors.forename: Roberto
authors.initials: R
authors.lastname: D'Amato
authors.affiliation: Department of Mechanical Engineering, Chemistry and Industrial Design, Universidad Politécnica de Madrid, Ronda de Valencia 3, Madrid 28012, Spain. emilio.gomez@upm.es.
authors.forename: Emilio
authors.initials: E
authors.lastname: Gómez
authors.affiliation: Department of Construction and Manufacturing Engineering, Universidad Nacional de Educación a Distancia (UNED), C/Juan del Rosal 12, Madrid 28040, Spain. rdomingo@ind.uned.es.
authors.forename: Rosario
authors.initials: R
authors.lastname: Domingo
keywords: CMM error mapping; CMM uncertainty; CMM verification; angle measurement; circularity measurement; flatness measurement