Improved Relative-Entropy Method for Eccentricity Filtering in Roundness Measurement Based on Information Optimization

Xintao Xia, Yinping Jin, Yantao Shang, Long Chen
2013 Research Journal of Applied Sciences Engineering and Technology  
In this study, we propose the improved relative-entropy of the ideal circle function to the measured information of the radius error of the workpiece surface to make an eccentricity filtering in roundness measurement. Along with a correct assessment for the parameters of the eccentricity filtering, the extracted information from the measured information is obtained by the minimization of the improved relative-entropy. The case studies show that the information optimization is characterized by
more » ... characterized by decreasing the improved relative-entropy, the extracted information almost coincides with the real information, the improved relative-entropy has a strong immunity to the stochastic disturbance of the rough work piece-surface and the increase of the minimum of the improved relative-entropy counteracts the effect of the stochastic disturbance on the assessment for parameters in eccentricity filtering.
doi:10.19026/rjaset.5.4296 fatcat:55zngrm3lff65lqurqtk3vyst4