Patent ID: 7784360

Claim:
A system comprising: a vibratable conduit; a driver connected to the conduit and configured to impart motion to the conduit; a sensor connected to the conduit and configured to sense the motion of the conduit and generate a sensor signal; and a controller connected to receive the sensor signal, the controller being configured to: generate a raw mass-flow measurement from the sensor signal; generate an observed density measurement from the sensor signal; detect a single-phase flow condition and process the raw mass-flow measurement using a first process during the single-phase flow condition to generate a first mass-flow measurement; and detect a two-phase flow condition and using a second process during the two-phase flow condition to generate a second mass-flow measurement, wherein the second process includes (i) generating an error correction factor based, at least in part, on the raw mass-flow measurement and the observed density measurement and (ii) correcting the raw mass-flow measurement using the error correction factor.