DYNAMOSTATIC LIQUID LEVEL Russian patent published in 2007 - IPC G01C5/04 G01C9/22 

FIELD: measuring equipment, in particular, devices for high-accuracy measurement of excesses, as well as for monitoring of the points of the engineering structures and production equipment by combination of the methods of hydrodynamic and hydrostatic leveling.

SUBSTANCE: the device has dynamostatic systems installed on the preset horizontal with monitored vessels communicating in them, as well as one measuring vessel installed on a fixed point in the system located on the lower horizon. One of the monitored vessels installed on the fixed horizon is provided with an additional level indicator, whose other end is fixed to the base of the monitored vessel of the system installed on the preset upper level. The vessels are filled with liquid and separated into two equal sections: the main and the auxiliary ones, communicating only in liquid through a port in the bottom part of the vessel. The liquid level indicators are located in the upper part of the main sections of the monitored vessels, the indicators are installed at a similar distance from their bases. The air spaces of the auxiliary sections of the measuring and monitored vessels are connected to the additional pressure unit by pipe-lines of a similar length and diameter. Pressure equalization in the main and auxiliary vessels, as well as increase of pressure in the auxiliary section of the vessels, are effected with the aid of the respective valves.

EFFECT: enhanced accuracy of measurements and simplified construction.

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