Electromagnetic metrology is a branch of metrology that applies electromagnetic measuring instruments, meters, and equipment to quantitatively analyze the measured quantity using corresponding methods, and studies and ensures the unity and accuracy of electromagnetic measurement. The main research contents include: precise determination of physical constants related to electromagnetic quantities, determination of electromagnetic unit system, research, reproduction and preservation of measurement standards and benchmarks for electromagnetic units according to definitions, study of measurement methods for electromagnetic quantities, research of standard measuring tools and specialized measuring devices for transmitting electromagnetic quantity values, and research and development of corresponding calibration systems, calibration regulations, technical specifications and other technical regulations.
