Research on a watt balance experimental model based on a monolithic weighing converter

Abstract

This research describes the main systems and nodes of the watt balance experimental model created at the D. I. Mendeleev Institute for Metrology. It presents the results of studies of metrological characteristics of the watt balance model arrangement component part that operate on the principle of electromagnetic force compensation with a monolithic weight converter and a lower suspension. The studies were conducted with the use of standards traceable to the state primary standard of the unit of mass – kilogram. The research provides the information on the joint efforts of national metrological institutes aimed at the gradual spread of the unit of mass traceable to the fundamental physical constant – Planck's constant, the fixation of the numerical value of which was adopted at the 26th General Conference on Weights and Measures in Paris on May 20, 2019. Here the necessity of carrying out work to maintain the equivalence of the national standard of the unit of mass to the best national standards of other countries is reflected, because it is also the required factor for international recognition of the measuring capabilities of the metrological institutes of Russian Federation. The findings of the metrological characteristics of the watt balance experimental model studies showed potential possibility of using the design solutions applied in this experimental model for creating the measurement standard in the Russian Federation to implement a new definition of the kilogram.