Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Magnet structure or material
Patent
1985-04-12
1986-04-22
Harris, George
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Magnet structure or material
324320, H01F 500
Patent
active
045845484
ABSTRACT:
A coil assembly comprises four coils for generating a static magnetic field in an NMR imaging apparatus, wherein the dimensions of the coils are selected so that the flatness of the cross section of the coils, the current turns ratio, and the radius ratio, are within certain limits. The assembly so constructed produces highly uniform magnetic field, is small in size, and light-weight, and consumes a lower amount of power, and can be manufactured inexpensively.
REFERENCES:
patent: 4320342 (1982-03-01), Heinzerling
patent: 4362993 (1982-12-01), Young et al.
patent: 4398150 (1983-08-01), Barjhoux et al.
patent: 4509011 (1985-04-01), Sugimoto et al.
Inoue Yuji
Iwaoka Hideto
Sugiyama Tadashi
Harris George
Kojima Moonray
Yokogawa Hokushin Electric Corporation
Yokogawa Medical Systems Limited
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