Stabilization of calibration metrological characteristics of technological inspection tools

The paper presents analysis of the results of 873 template measurements used for inspection in wagon depo. The data obtained were analyzed to confirm the stability of inspection results. It is shown that the measurement and determination of the final result by calculating the average value lead to misleading results. Random factors affecting measurements are also presented. The subjective factor in this process is supplied from the calibrator. To make measurement process more stable, we need to reduce the effect of these factors. One of the ways to improve measurement process and make it more stable is its automatization. Improving the accuracy of measurements is one of the main objectives concerning this issue.