Two-point calibration of coating thickness gauges: what needs to be considered to improve measurement accuracy

摘要

It is shown that, unlike other means of measuring linear dimensions, coating thickness gauges do not have a regulatory framework governing their accuracy (error). It is noted that a number of external factors influence the reliability of the results of coating thickness measurements. Using the example of coating thickness gauges, the difference in the measurement results for two-point and zero calibration is shown.