Uniform magnetic field generator

Details Uniform magnetic field generator Uniform magnetic field generator

1987-09-14

1990-06-05

Broome, H.

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Magnet structure or material

335299, 324319, H01F 702

Patent

active

049317601

ABSTRACT:
Magnetic field generators used in magnetic resonance imaging instruments (MRI) need an extremely uniform and wide magnetic field space. With the annulus of a field-generating annular magnet composed of a plurality of permanent magnet blocks arranged annularly, non-magnetic hold plates may be arranged in correspondence with each of the permanent magnet blocks, and field-regulating permanent magnet pieces may be fixed at stated positions of the hold plated, thereby obtaining a uniform magnetic field space.

REFERENCES:
patent: 4422042 (1983-12-01), Sugimoto
patent: 4429277 (1984-01-01), Sugimoto
patent: 4639673 (1987-01-01), Zijlstra
patent: 4672346 (1987-06-01), Miyamoto et al.
patent: 4673882 (1987-06-01), Buford
patent: 4695802 (1987-09-01), Zijlstra
patent: 4707663 (1987-11-01), Minkoff et al.
PCT Publication WO 84/00611 International App. No.: PCT/US83/01175 filed: Aug. 2, 1983 William Oldendorf inventor.

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