NMR methods for measuring fluid flow rates

Details NMR methods for measuring fluid flow rates NMR methods for measuring fluid flow rates

2008-05-27

2008-05-27

Shrivastav, Brij (Department: 2859)

Electricity: measuring and testing

Particle precession resonance

Determine fluid flow rate

Reexamination Certificate

active

07378845

ABSTRACT:
A method for measuring fluid flow rates comprises the steps of: (a) creating a non-oscillating magnetic field of a predetermined strength across a flowing fluid; (b) performing the sub-steps of: (i) exposing the flowing fluid to an oscillating magnetic field pulse orthogonal to the non-oscillating magnetic field to generate an NMR signal, and (ii) detecting the NMR signal from the flowing fluid in the form of a free induction decay; and (c) determining the fluid flow rate from the initial magnitude of the free induction decay.

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