FIELD: measurement equipment.
SUBSTANCE: invention is intended for measurement of two-phase or multi-phase mixture with the help of Coriolis metre of mass flow/density and/or viscosity. Measurement device comprises metering converter of vibration type and electronic equipment electrically connected to it. Metering converter comprises at least one measurement tube installed in pipeline line. Electronic equipment supplies excitation current to system of metering tube oscillations exciter, and system of detector produced at least one signal for measurement of metering tube oscillations. To obtain value that represents physical measured value, electronic equipment estimates, based on excitation current and at least one signal of oscillations measurement, Coriolis coefficient of communication between the first internal mode of free oscillations of metering tube, specified at current moment by excitation system, and the second internal mode of free oscillations of metering tube. In the second internal mode metering tube has its own shape, which corresponds to mode of oscillation caused by forces of Coriolis induced in flowing mix. Due to change in concentration of at least one of mix components Coriolis coefficient of communication varies in time.
EFFECT: invention increases accuracy of heterogeneous medium measurements.
20 cl, 14 dwg
