Author(s)

Y. Dupont, G.M. Cloutier & J.R.R. Mayer

Abstract

This paper suggests a new method of identification for both translational and rotational deviations of a prismatic mobility with solely linear optics. A mathematic model is developed for laser interferometer measurements and a matrix identification system is built for calculating scale, pitch and yaw deviations of an X axis. The system is solved using the pseudo-inverse method. A sensitivity study of this solution, with regards to the system uncertainties, is achieved using a jacobian matrix. The benefits of ths new method compared to angular optic measurements are given using analytical equations. Finally, experimental results are presented. 1 Introduction The positioning accuracy of modern machine tools remains a prime concern in performance improvement. Machining precision is part

Keywords