METHOD OF MEASURING LIQUID LEVEL Russian patent published in 2019 - IPC G01F23/296 

FIELD: measuring equipment.

SUBSTANCE: invention relates to measurement equipment and can be used for measurement of liquids level in closed reservoirs. In the liquid level measurement method, consisting in the probing acoustic pulse emitting and the reflected signal reception from the media partition, measured is the propagation time of the acoustic wave emitted by the reversible ultrasonic transducer (radiator-receiver), which is set at a given (reference) L₀ distance from liquid level measurement upper limit, to interface of media and back (main reflected signal T₁), and acoustic wave propagation time along the path: emitter, media section, tank top overlapping, back to media section and to ultrasonic transducer (re-reflected signal T₂), calculating the measured liquid level L_x from formula

,

where R is distance from sensor installation point to tank wall of tank.

EFFECT: high accuracy of measuring level.

1 cl, 2 dwg