еталон

Inductance measurements is important for all branches of technology related to the application of electricity: energy
and electronics, radio and television, transport and communication, and scientific research. Electromechanical devices and
electronic components can be characterized using impedance measurements to identify the parameters of their equivalent electrical
model. New inductance measurement methods are being developed in specific fields of activity. Manufacturers of standards and

The phase is one of the main parameters of the oscillatory process in electric circuits and contains two components
– constant and variable. More often, it is not the actual phase that is measured, but the phase shift angle (PSA) between two
oscillating processes (voltages or currents) of the same frequency in the range from 0 to 360˚. Then the PSA is equal to the difference
between the constant components of the phases of the two oscillations and does not depend on the start of the time count.

A method has been developed for the adjustment of the results of measurements of length during calibration of a field comparator for verification (calibration) of distance meters and distance metric parts of total stations. The method of processing the results of comparisons of distance meters to the field comparator using the least squares method (LSM) was also developed on its basis. The additive biases of length measurements by each distance meter are evaluated according to the LSM, as well as the biases that are entered to the results of length measurements by each reflector.

Ensuring the unity and metrological traceability of measurement results becomes the key component necessary to reach market confidence in the results of calibrations, tests or measurements. Important aspect of maintaining the ability of the laboratory to receive metrological traceability and reliable measurement results is to determine the maximum permissible period between two calibrations of the standards and measuring instruments that provides the acceptable accuracy of measurements during their operation.