Processing by Least Square Method of the Measurements Results for Key, Regional and Supplementary Comparison of the Measurement Standards

Abstract

The methods of processing the measurement results of several homogeneous transfer standards existing in the form of single-valued or multi-valued measures/sensors or devices performed at many points on several stationary standards, which participate in key, regional or additional comparisons, are proposed in the article. The number of measurements far exceeds the number of unknown parameters of the standards, which are determined by the results of comparisons, that’s why the method of least squares was chosen as the mathematical apparatus for data processing.

Keywords

• comparison reference value, degree of equivalence, artifact, bias, travelling standard, uncertainty, least square method