HYDRODYNAMIC LEVELING SYSTEMS: MEASUREMENT METHODS AND AUTOMATION POSSIBILITIES

The results of laboratory tests of hydrodynamic leveling systems of the SGDN and USGDN brands created by the Yerevan Polytechnic Institute in 1973-84 and the data of production tests of the USGDN-20D system on the vertical displacements of turbine units No. 1-5 of the Rovno NPP are presented. The shortcomings that emerged during the testing of the USGDN-20D system in the conditions of the turbulent situation and the measures taken to eliminate them, and the replacement of some structures with new ones are given. The results are given by the team of the Geodesy Problem Laboratory named after Academician R. H. Movsisyan of the RA Academy of Geodesy in 2012-23. on testing 3 automated prototypes of the HFMS created with new technologies and assessing the degree of accuracy of their measurements. A new HFMS system designed by the author is also presented, which will provide higher accuracy in determining the overshoots compared to the previous three HFMS prototypes, since here the working fluid does not encounter any resistance during movement, except for the frictional resistance. In addition, the advantage of the HFMS system is that the flow of the working fluid is provided by a 27-volt battery-powered DC electric motor, which makes it possible to install it in any place where there is no DC power source.