Patent ID: 8633689
Filing Date: 2014-01-21
Classification: G01F,G01N,G01R

Abstract:
1. A method of estimating a flow rate of a phase of a fluid having a plurality of components, the method comprising: using a magnet for polarizing nuclei of the fluid flowing over a plurality of distances wherein a number of the distances is equal to or greater than a number of the components; measuring a magnetization of the polarized nuclei for each of the plurality of distances for a selected flow velocity; using the plurality of measured magnetizations for estimating a relative fraction of each of the plurality of components corresponding to the selected velocity; wherein measuring the magnetization of the polarized nuclei further comprises pulsing a first coil with a tipping pulse, pulsing a second coil with a refocusing pulse, and measuring an echo resulting from the refocusing pulse with a third coil.