Electricity: measuring and testing – Particle precession resonance – Spectrometer components
Patent
1997-11-07
2000-02-15
Arana, Louis
Electricity: measuring and testing
Particle precession resonance
Spectrometer components
324315, G01V 300
Patent
active
060257199
ABSTRACT:
Net magnetic flux trapped in an NMR high temperature superconducting RF probe coil magnetically coupled with a main excitation DC magnetic field of an NMR device of which the probe is a part is reduced by moving the probe coil relative to the main magnetic field axis. There is a resulting interaction between the moving probe coil and the main excitation DC magnetic field to induce a current in the probe coil. The induced current reduces the net magnetic flux trapped in the probe coil. The probe coil is moved so the induced current is an AC current having an envelope with decreasing amplitude as a function of time. An electromechanical drive, produced by a magnetic field or an electrostatic field or a piezoelectric transducer attached to a substrate carrying the probe coil, provides oscillatory movement of the probe coil.
REFERENCES:
patent: 3577067 (1971-05-01), Weaver
patent: 5166615 (1992-11-01), Sidles
patent: 5572127 (1996-11-01), Wong et al.
patent: 5684401 (1997-11-01), Peck et al.
Arana Louis
Varian Inc.
LandOfFree
Nuclear magnetic resonance method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Nuclear magnetic resonance method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nuclear magnetic resonance method and apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1908581