SYSTEM AND METHOD FOR PRODUCING MAGNETIC STRUCTURES
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United States of America Patent
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Issued Date -
Jul 31, 2014
app pub date -
Mar 5, 2014
filing date -
Jun 2, 2009
priority date (Note) -
Abandoned
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Abstract
A magnetizer for magnetizing magnetic field sources into a magnetizable material includes a magnetization subsystem, a motion control system, and a magnetizer control system. The magnetization subsystem includes a magnetizing inductor comprising a plurality of flat conductor layers and a plurality of insulating layers that form multiple turns of a coil having an aperture and a magnetization circuitry for applying a current to the magnetizing inductor to generate a magnetizing field having a high magnetic flux density in and near said aperture that is sufficient to magnetize said magnetizable material and having a low magnetic flux density elsewhere that is insufficient to substantially magnetize said magnetizable material. The motion control system moves at least one of the magnetizable material or the magnetizing inductor to position the aperture of the magnetizing inductor adjacent to one or more locations at a surface of the magnetizable material where the one or more magnetic field sources are magnetized into the magnetizable material. The one or more magnetic field sources have a first polarity exposed at the surface of the magnetizable material and a second polarity not exposed at the surface of the magnetizable material.
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