FIELD: physics.
SUBSTANCE: metre electronics (20) of coriolis flow metre, through which multiphase material flows, includes an interface (201) for receiving first and second sensor signals (210 and 211). Data processing system (203), which is part of the metre electronics (20), can receive first sensor signal (210) and second sensor signal (211), generate the first ninety degree phase shift (213) from the first sensor signal (210) and generate a second ninety degree phase shift (214) from the second sensor signal (211), calculate frequency (221) using one of first ninety degree phase shift (213) or second ninety degree phase shift (214), calculate phase difference (220) using one or more of first ninety degree phase shift (213) and second ninety degree phase shift (214), and calculate one or more mass flow (223), density (224) or volume flow (225) of the multiphase flow. Data processing system (203) also generates instantaneous flow density to determine one or more liquid content (1427) or gas content (1428).
EFFECT: increased accuracy of measurement.
39 cl, 27 dwg
