Authors: E.A. Nikolaeva, A.V. Nikolaev

Title of the article: Algorithm of calculation of uncertainty when conducting calibration of measuring instruments

Year: 2017, Issue: 5, Pages: 162-167

Branch of knowledge: Mechanical engineering and machine science

Index UDK: 51–74

DOI: 10.26730/1999-4125-2017-5-162-167

Abstract: In modern market conditions, every enterprise must ensure the competitiveness of its products, which includes one very important element – quality. One of the factors determining the quality of products (works, services) is the accuracy of measurements. Currently in the Russian Federation, in order to comply with international standards for assessing the quality of products, measures are being taken to standardize national standards in the field of ensuring the uniformity of measurements. At present, GOST ISO / IEC 17025–2009 is applied as a national standard for compliance with the requirements of international standards of the Russian Federation. This document establishes that "calibration laboratories should have and apply procedures for estimating measurement uncertainty". From the definition that was previously used by a small number of metrologists, the measurement uncertainty turned into a definition characterizing the measurement result. The use of "uncer-tainty", when evaluating the accuracy of measurements, makes it possible to visually solve the issue of the compliance (incompliance) of the measured quality characteristic with the established norms. In the study, approaches to calculation of uncertainty of measurements at calibration by the accredited la-boratories for acknowledgment of the competence according to GOST ISO / IEC 17025–2009 (general require-ments to competence of test and calibration laboratories) are considered. This work is devoted and describes the method of measuring the required level of accuracy and complexity of measurements when calibrating measuring instruments.

Key words: Means of measurement calibration measurement uncertainty

CITE DOWNLOAD