Structures producing a magnetic field with a gradient and a...

Details Structures producing a magnetic field with a gradient and a... Structures producing a magnetic field with a gradient and a...

2005-07-28

2008-05-20

Bernatz, Kevin M (Department: 1794)

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

C428S034100, C428S692100, C428S693100, C335S306000

Reexamination Certificate

active

07374826

ABSTRACT:
Magnetic field structures composed of stacked magnetic laminae that are magnetically oriented perpendicular to their planes and configured to cause a volume charge density and cancel the field effects of unwanted surface negative charges are provided. This arrangement causes a uniform volume magnetic charge density, which results in a magnetic field normal to the laminae. The stacked magnetic laminae magnetic field structure cancel the field effects of the deleterious unwanted surface charges because these surface charges are so situated that their contributions to the internal magnetic field mutually cancel each other, and thus they are no longer detrimental to the magnetic field created by the volume charge density.One embodiment provides a planar magnetic field gradient source structure.

REFERENCES:
patent: 5216401 (1993-06-01), Leupold
patent: 5337472 (1994-08-01), Leupold et al.
patent: 5396209 (1995-03-01), Leupold
patent: 6579625 (2003-06-01), Engel et al.
patent: 09-232135 (1997-09-01), None
JPO Abstract Translation of JP 09-232135 A (PAT-No. JP409232135!).
Machine Translation of JP 09-232135-A.

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