Analysis of methods for checking coating thickness gauges

Abstract

The analysis of structure and the maintenance of a technique of checking 002.D4-14 which extends to feeler gages of coverings of the TM-2, TM-3, TM-4, TM-4T models, techniques 159-261-2016 of checking of feeler gages of coverings of SaluTrjn and technique of the checking of feeler gages of coverings regulated by state standard 8.502-84 is carried out. It is shown that the first two techniques do not consider an accidental component of an error, and the third technique considers an accidental component incorrectly. All this results in a high probability of wrong recognition suitable any in fact a defective copy of the feeler gage or suitable devices can are mistakenly accepted as rejected. For increase in reliability of results of checking of feeler gages of coverings recommendations for their inclusion in the maintenance of a technique of checking are offered.