Review of laboratory work in physics from the point of view of a metrologist

Authors: Kochetygin M.K., Lavrushin O.M., Shchebletsov L.V., Norov V.S.
Published in issue: #4(99)/2025
DOI:
Category: Physics | Chapter: Instrumentation and Methods of Experimental Physics
Keywords: measurement, metrological support, ferromagnets, magnetic permeability, magnetic field strength, magnetic induction and magnetization of a ferromagnet, basic magnetization curve, steady state, magnetic domains, inter-domain walls
Published: 27.09.2025

Experimental physics and metrology are synonymous words, since all experimental physics is inextricably linked with measurement. Metrology, as a science, in addition to the rules that ensure the quantitative side of the measurement procedure, also has an analytical methodological basis based on fundamental science and scientific logic. Violation of these analytical rules of metrological support for a physical experiment leads to an incorrect assessment of the results obtained. An example of such a misunderstanding of the methodology of metrological support is given on the basis of an analysis of a typical laboratory work on determining the magnetic permeability of a ferromagnet. The lack of an accurate definition for the measured physical parameter and the conditions under which this parameter can be determined leads to uncertainty of the results obtained.

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