FIELD: physics; measurement.
SUBSTANCE: present invention pertains to measurement of level of liquid in wells, bore holes and sealed containers and can be used in drilling technology, chemical and petrochemical industry and sanitary engineering. The method involves increasing volume of gas over the surface of the liquid, by a known value ΔV and determination of the pressure of gas before and after increasing the volume. The volume of gas is increased by pumping out a volume of liquid from the closed container equal to ΔV. Pressure of gas on the surface of the liquid is measured before and after pumping out the liquid and the volume of liquid in the container is calculated using formula 
where V0, V is the volume of liquid in the closed container and the total volume of the container respectively, in m3, ΔV is the volume of liquid, pumped out of the container, in m3, p0 and p1 is the pressure of gas on the surface of the liquid before and after pumping volume ΔV of liquid, respectively, in Pa (atm).
EFFECT: simplification of the method of measuring volume of liquid in a closed container due to less number of required operations, simplification of implementation, and consequently, shorter time spent on measuring.
1 dwg
