Method and apparatus for measuring flow of non-homogeneous mater

Details Method and apparatus for measuring flow of non-homogeneous mater Method and apparatus for measuring flow of non-homogeneous mater

1984-10-29

1987-01-20

Levy, Stewart J.

Electricity: measuring and testing

Particle precession resonance

Determine fluid flow rate

324300, G01R 3320, G01F 156, G01N 2408

Patent

active

046382518

ABSTRACT:
In the preferred and illustrated embodiment, a method and apparatus for measuring the flow of non-homogeneous materials in an incompletely filled channel is set forth. In one embodiment, a NMR (or ESR) flow meter arrangement including a magnet forming the requisite magnetic field H.sub.o across a flow channel is incorporated. The magnet cooperates with a coil providing an NMR or ESR output signal from selected specie(s) or sub-atomic patricles (i.e. nuclei or unpaired electrons) in the material in the flow stream. It is desirable for the signal to be representative of the total amount of material in the flow stream. This signal may be in error, unable to sort out prospective combined variations due to (1) incomplete filling of the sensing volume or (2) a non-homogeneous composition of material. A composition sensor coil inscribing a very small volume in selected portions of the flow channel is included to form an NMR output signal indicative of composition, the small volume being filled for that sensor. Its output signal thus determines one of the two variables, and is input to a data combining circuit to indicate the flow volume from the two signals.

REFERENCES:
patent: 3820392 (1974-06-01), Beck et al.
patent: 4202211 (1980-05-01), Perry
Genthe et al., NMR applied to Flow Measurement, Nov. 1968.
Abouelwafa et al., Optimization of Continuous Wave Nuclear Magnetic Resonance to Determine in Situ Volume Fractions and Individual Flow Rates in Two Component Mixtures, Rev. Sci. Instrum., 50(12), Dec. 1979.

Affiliated with

Also associated with

Rating

Method and apparatus for measuring flow of non-homogeneous mater does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for measuring flow of non-homogeneous mater, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for measuring flow of non-homogeneous mater will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2136911