Rapid average-flow velocity measurement by NMR.
We describe an NMR method to make a quick determination of average fluid velocity by monitoring the change in phase of the magnetization during a transient signal. We give an example utilizing the second Carr-Purcell-Meiboom-Gill echo in which we measured the velocity of water up to 54 cm/s where each velocity was determined by data taken over 2.5 ms.
Altobelli
S A
SA
Caprihan
A
A
Davis
J G
JG
Fukushima
E
E
D006801:Humans; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D008961:Models, Structural; D012212:Rheology; D014867:Water
D014867:Water