FIELD: air-space technology. SUBSTANCE: equal portions of gas are fed to a tank by proportioner 2 during the pressurization cycle and the number of gas portions during the cycle is determined. Pressure at the beginning and the end of the gas portion series delivery is simultaneously measured by transducer 4, the gas temperature at the tank inlet is measured by transducer 5. The quantity of fluid in tank 1 is computed using the measured data. EFFECT: improved accuracy. 2 dwg
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