Measurement simulation and data assessment of circular scales

Abstract

Analysis of circular scales accuracy calibration methods based on the use of computer modelling and data processing including information entropy assessment is presented. The computer simulation means for angular position measurement are presented using the circular scale simulation on the PC screen and giving a wide range of opportunities lo change or select various scales' parameters for their further analysis. Accuracy analysis of the circular scales is available applying different methods of measurement and making experimental trials of newly developed methods. Various parameters of the scale can be simulated and an analysis of systematic and random errors can be performed as well. Methods of error correction for systematic errors can be applied, and information entropy assessment can be made. The means and model of simulation provide the possibility to apply a wide range of parameters change with subsequent their analysis what is impossible and highly expensive in case of real experimental trials in-situ. The software developed permits to calculate accuracy parameters of thousands of angular values after simulation of measurement using newly developed method of measurement of circular scales.