Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Patent
1991-03-18
1993-06-01
Tokar, Michael J.
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
324300, 324318, G01R 3320
Patent
active
052163660
ABSTRACT:
A method of determining the proportions of different components of material in a duct comprises exciting nuclear magnetic spins of nuclei of a species common to the components in a region of the duct and utilizing the resulting free induction decay (FID) signal. The nuclear spins are excited simultaneously in the components and the proportions are determined by measuring the phase of the FID signal relative to a phase datum. The method finds particular application for measuring the proportions of oil and water in material obtained from a sub-sea oil well.
REFERENCES:
patent: 4390957 (1993-06-01), Skarlos et al.
patent: 4638251 (1987-01-01), King
patent: 4701705 (1987-10-01), Rollwitz
patent: 4769602 (1988-09-01), Vinegar et al.
patent: 4795245 (1988-11-01), Lew et al.
patent: 4866385 (1989-09-01), Reichwein
patent: 5095271 (1992-03-01), Ohkawa
patent: 5132903 (1992-07-01), Sinclair
Webster's New World Dictionary--3rd College Ed p. 419.
Radiology, "Simple Proton Spectroscopic Imaging", by W. Thomas Dixon, 153, 1984, pp. 189-194.
J. Comput. Assist. Tomogr., "MR Imaging: Clinical use of the Inversion Recovery Sequence", by G. M. Bydder, et al. 9 (6), 1985, pp. 659-675.
Magnetic Resonance Imaging, 1, 1982, "A flow velocity zeugmatographic interlace for NMR imaging in humans", by P. R. Moran, pp. 197-203.
J. Comput. Assist., Tomogr., 8 (4), 1924, "Measurement of flow with NMR Imaging using a gradient pulse and phase difference technique", by D. J. Bryant et al., pp. 588-593.
IBM Technical Disclosure Bulletin, vol. 32, No. 6B, Nov. 1989, New York, U.S., pp. 9-11.
Physics in Medicine and Biology, vol. 30, No. 4, Apr. 1985, London, GB, pp. 341-344, A. Haase et al.
Magnetic Resonance in Medicine, vol. 5, No. 1, Jul. 1987, Diluth, MN, U.S., pp. 83-86, J. A. B. Lohman et al.
Magnetic Resonance in Medicine, vol. 13, No. 3, Mar. 1990, Duluth, MN, U.S., pp. 398-406, J. P. Hornak et al.
Journal of Magnetic Resonance, vol. 89, No. 3, Oct. 1990, Orlando, MN, U.S., pp. 470-478, P. D. Majors et al.
Mah Raymond Y.
The General Electric Company p.l.c.
Tokar Michael J.
LandOfFree
Methods and apparatus for investigatitng the composition of mate does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods and apparatus for investigatitng the composition of mate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and apparatus for investigatitng the composition of mate will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1817536