Tuning device for nuclear magnetic resonance imaging apparatus a

Details Tuning device for nuclear magnetic resonance imaging apparatus a Tuning device for nuclear magnetic resonance imaging apparatus a

1988-07-22

1989-06-06

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

324318, G01R 3320

Patent

active

048375160

ABSTRACT:
A tuning device for an NMR imaging apparatus capable of functioning responsively and accurately in the presence of a strong magnetic field. The device includes LC circuit formed by coils and tuners including variable capacitors, and ultrasonic motors which tunes the LC circuits to a resonant frequency by adjusting the variable capacitors. An NMR imaging apparatus including this tuning device is also disclosed.

REFERENCES:
patent: 3921060 (1975-11-01), Ekimovskikh
patent: 3968426 (1976-07-01), Ward, Jr.
patent: 4642509 (1987-02-01), Kumada
patent: 4673882 (1987-06-01), Buford
patent: 4697117 (1987-09-01), Mishiro
patent: 4703273 (1987-10-01), Kolbe et al.
patent: 4736161 (1988-04-01), Prevot et al.

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