Assessment of Background Illumination Influence on Accuracy of Measurements Performed on Optical Coordinate Measuring Machine Equipped with Video Probe.

General conclusion coming from analysis of performed experiments results is that they show quite significant effect of the backlight on the results of circles’ diameters and points’ positions measurements (after exceeding a certain level of illumination, which is L50 for considered OCMM); on the contrary, effects of illumination on results of circularity deviation measurements are negligible and small on uncertainty of point measurement.

also in 5,682 other papers