Division and Sealing Surfaces in Flow Energy Machines: An Analysis of Diverse Flatness Deviation Measurement Techniques

This paper presents a comparative analysis of the results obtained from three different measuring machines using tactile measurement techniques. The influence of the number and method of collecting measurement points on the detection of shape errors of the tested object is investigated in particular. The conducted studies using three different devices introduce a new, practical method for acquiring and processing measurement points. In addition, the effectiveness of three methods for measuring flatness deviations is analyzed, focusing on how the selection and number of measurement points can significantly affect the accuracy and efficiency of inspection operations. The aim of this study is to illustrate the influence of coordinate measuring techniques on the precision of determining shape errors, offering insight into optimizing measurement practices to improve accuracy and operational efficiency. The novelty of the study lies in the detailed analysis of the impact of the number of measurement points and measurement methods on the final results. Such a detailed approach is rare in the literature and provides significant insights into the possibility of replacing precise devices with less accurate ones under specific conditions, that is, devices with a higher measurement error, while achieving the required measurement accuracy through a greater number of measured points.