Magnetic assemblies

Details Magnetic assemblies Magnetic assemblies

B - Operations, Transporting

63

G

317/26, 317/29

B63G 7/06 (2006.01) B63G 9/06 (2006.01)

Patent

CA 1246661

ABSTRACT The invention comprises a magnet assembly consisting of a plurality of permanent magnets 1 each of which is wound around by a solenoid winding 4 which in use produces a field to force the permanent magnet 1 into positive or negative saturation in depen- dence on the direction of the solenoid current. Thus the overall magnetic moment of the assembly can be varied stepwise. Each permanent magnet 1 comprises a bundle of rods 2, made from a mag- netic material such as chromium steel. The assembly is enclosed in a casing 3 of glass reinforced plastic to make the magnet assembly buoyant but not affect the magnetic fields produced. The magnet assembly can be constructed in the form of a 3-axis magnet to produce orthogonal magnetic fields. A number of the magnet assemblies can be connected in series to form a variable permanent magnet system producing a controllable magnetic field.

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