Flow imaging by means of nuclear magnetic resonance

Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system

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324307, G01R 3320

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046251693

ABSTRACT:
Nuclear magnetic resonance apparatus for forming an image representative of a velocity profile of a fluid flowing in a vessel in which the fluid is stimulated to produce a time-dependent magnetic resonance signal, Fourier-transformed data is derived from the time-dependent magnetic resonance signal, the stimulating is done so as to introduce, into a predetermined component of the Fourier-transformed data, spatially-dependent phase information indicative of the velocity profile of the fluid, and the predetermined component is extracted for display as the image representative of the velocity profile.

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