Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Magnet structure or material
Patent
1984-02-09
1985-11-12
Harris, George
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Magnet structure or material
335297, 324318, H01F 720
Patent
active
045531226
ABSTRACT:
A magnet pole piece for an NMR imaging magnet is made of a plurality of magnetic wires (3) with one end of each wire held in a non-magnetic spacer (1), the other ends of the wires being brought to a pinch (5), and connected to a magnetic core (6). The wires are embedded in a synthetic resin (4) and the magnetization and uniformity thereof can be varied by adjusting the density of the wires at the spacer which forms the pole piece.
REFERENCES:
patent: 1132016 (1915-03-01), Jobke
patent: 2887454 (1959-05-01), Toulmin
patent: 4359706 (1982-11-01), Flack
Harris George
Picker International Limited
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