FIELD: measuring equipment.
SUBSTANCE: disclosed is a vibration flow meter (5) with an excitation apparatus (104) and a vibration element (103, 103') capable of vibrating by means of the excitation apparatus (104). At least one strain gauge (105, 105') is configured to detect vibrations of the vibration element (103, 103'). The measuring electronic equipment (20) comprises an interface (301) configured to receive the response vibration from at least one strain gauge (105, 105'), and a processing system (303) connected with the interface (301). The processing system (303) is configured to measure the excitation intensification coefficient (306) of the excitation apparatus (104) and measure the total density (325) of the multiphase process fluid medium in the vibration measuring apparatus (5) and determine whether the excitation intensification coefficient (306) is lower compared to a first threshold level. The liquid/liquid phase concentration distribution is determined using the measured total density (325). It is determined, whether the excitation intensification exceeds a second threshold greater than the first threshold, and whether the excitation intensification exceeds a first threshold value of the excitation intensification noise, and also concentration are the gas/liquid phase concentration, the distribution with the measured total density and the previously determined liquid density, if the measured total density is lower than the liquid density range, and also if the excitation intensification coefficient (306) is lower than the first threshold value, the flow rate is calculated for each phase.
EFFECT: increase in the accuracy of flow meters used for measuring multiphase fluids.
10 cl, 4 dwg
