Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Patent
1990-06-27
1992-09-01
Tokar, Michael J.
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
324322, G01B 3320
Patent
active
051442370
ABSTRACT:
A method and an apparatus of nuclear magnetic resonance imaging, capable of minimizing a wasteful unproductive power capacity of the gradient magnetic field power source. A required amount of current is supplied to the gradient magnetic field coil by a basic power source for supplying the current up to a predetermined amount to the gradient magnetic field coil, and by a plurality of power source elements, each capable of supplying a prescribed amount of current, for supplementing the basic power source by using a necessary number of the power source elements such that a total amount of current supplies by the basic power source and the power source elements becomes equal to the required amount of current.
REFERENCES:
patent: 4437053 (1984-03-01), Bax
patent: 4644277 (1987-02-01), Kunz
patent: 4670716 (1987-06-01), Kunz
patent: 4733342 (1988-03-01), Mueller et al.
Kabushiki Kaisha Toshiba
Tokar Michael J.
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