Modern standard linear basis of original design for metrological verification of geodetic instruments
Abstract
Geodetic instruments must be examined and metrologically checked for compliance with technical regulations in order to ensure the unity of measurements. In modern geodesy, linear measurements mostly dominate, and metrological monitoring of means of measuring technology (MMT) to transfer them a unit of length from a working standard is carried out on a linear geodetic basis that performs the functions of a working standard.
At the same time, the accuracy of the standard objects should be three times higher than the accuracy of the research instruments. A standard linear geodetic base of original design was created and has been operating for many years at the scientific geodetic polygon near Lviv, designed for long-term use, taking into account the accumulated world experience.
Considered design features and ensuring measurement accuracy, methods, and results of many years of experimental calibration of the basis and the results of two international metrological reconciliations (carried out for the first time in Ukraine), which confirmed the high stability of the lines of the working standard. National Science Center (NSC) "Institute of Metrology" periodically carried out certification of this basis and it is widely used for scientific research and metrological verification of MMT of various companies and models, by various organizations and enterprises of the country's geodetic industry.