A Study on Evaluation of Circularity and Related Features for Eccentric Cam Shaft (2nd Report)

Measured Results and Discussion

Abstract

This paper presents the technique to get circularity, eccetricity and its orientation of eccentric cam shaft by applying the iterative least-square method to measured data. At first, it is shown that the off-set error of probe is computed from data measured under the condition of eccentricity e≥1.5mm by means of the new technique. Although the circularity grows worse by the off-set error of probe, this circularity is corrected by using the technique to compensate the off-set error. On the other hand, it is made clear that the eccentricity and its orientation are precisely obtained by the iterative least-square method.