HYDRODYNAMIC LEVEL INDICATOR Russian patent published in 1997 - IPC

FIELD: measurement of level of gasoline in tanks of gas-filling stations and oil distribution centers. SUBSTANCE: hydrodynamic level indicator includes two vessels of constant level placed one beneath other, tube installed vertically in tank, pump with sampler taking portion of liquid from tested tank into upper vessel of constant level from which tested liquid flows through hydrodynamic resistor with constant flow rate into vessel of constant level positioned beneath. From it portion of liquid flows into tank over tube installed vertically in tank. Other portion of liquid goes through drain vessel into collecting vessel and flowmeter. Readings of flowmeter are functionally coupled to level of tested liquid in tank. EFFECT: enhanced authenticity and speed of level measurement. 8 cl, 3 dwg