System for concentrating and controlling magnetic flux of a multi-pole magnetic structure
First Claim
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1. A magnetic system, comprising:
- a lateral magnet assembly, comprising;
a multi-pole magnetic structure comprising one or more pieces of a magnetizable material having a plurality of polarity regions for providing a magnetic flux, said magnetizable material having a first saturation flux density, said plurality of polarity regions being magnetized in a plurality of magnetization directions; and
a first plurality of pole pieces of a first ferromagnetic material for integrating said magnetic flux across said plurality of polarity regions and directing said magnetic flux at right angles to one of a target or a complementary lateral magnet assembly, said first ferromagnetic material having a second saturation flux density; and
a magnetic circuit between said lateral magnetic assembly and said one of said target or said complementary lateral magnet assembly for controlling the magnetic flux directed to said one of said target or said complementary lateral magnet assembly, said magnetic circuit comprising;
a second plurality of pole pieces of a second ferromagnetic material, said second ferromagnetic material having a third saturation flux density; and
a magnetically inactive material for constraining said second plurality of pole pieces.
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Abstract
An improved system for concentrating and controlling magnetic flux of a multi-pole magnetic structure at the surface of a ferromagnetic target uses first pole pieces having a magnet-to-pole piece interface with a first area and a pole piece-to-target interface with a second area substantially smaller than the first area for concentrating flux of the multi-pole magnetic structure at each pole piece-to-target interface, where the target can be a ferromagnetic material or complementary pole pieces. A magnetic circuit having second pole pieces located between the first pole pieces and the ferromagnetic target controls the flux directed from the first pole pieces to the ferromagnetic target.
5 Citations
20 Claims
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1. A magnetic system, comprising:
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a lateral magnet assembly, comprising; a multi-pole magnetic structure comprising one or more pieces of a magnetizable material having a plurality of polarity regions for providing a magnetic flux, said magnetizable material having a first saturation flux density, said plurality of polarity regions being magnetized in a plurality of magnetization directions; and a first plurality of pole pieces of a first ferromagnetic material for integrating said magnetic flux across said plurality of polarity regions and directing said magnetic flux at right angles to one of a target or a complementary lateral magnet assembly, said first ferromagnetic material having a second saturation flux density; and a magnetic circuit between said lateral magnetic assembly and said one of said target or said complementary lateral magnet assembly for controlling the magnetic flux directed to said one of said target or said complementary lateral magnet assembly, said magnetic circuit comprising; a second plurality of pole pieces of a second ferromagnetic material, said second ferromagnetic material having a third saturation flux density; and a magnetically inactive material for constraining said second plurality of pole pieces. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification