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US 2019/0244737 A1Published application
Magnet design
AssigneeSchlumberger Technology Corporation
InventorsYiqiao Tang, Irfan Bulu, Yi-Qiao Song, Mark Flaum, Tancredi Botto, Shin Utsuzawa
Life of this patent
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Abstract
Magnet design is provided. A method customizes a magnetic field uniformity of a magnet by introducing one or more gaps between pieces of the magnet assembly.
Claims30
A method comprising:
- obtaining a plurality of uniform magnet pieces;
- and
- assembling the uniform magnet pieces as a magnet assembly with at least one gap between the magnet pieces, wherein the assembling includes selecting a respective width for each at least one gap, thereby extending the uniformity of a resulting magnetic field region of the magnet assembly with the at least one gap relative to a magnet field region of a magnet assembly with the same pieces but without the at least one gap.
A method comprising:
- customizing a magnetic field uniformity of a magnet assembly comprised of a toroidal magnet and a ferromagnetic ring extending around the toroidal magnet by introducing at least one gap or slot in the ferromagnetic ring in order to extend uniformity of a resulting magnetic field region of the magnet assembly with the gap or slot in the ferromagnetic ring relative to a magnet field region of a magnet assembly with the same toroidal magnet and ferromagnetic ring but without the at least one gap or slot in the ferromagnetic ring.
A magnet assembly, comprising:
- a plurality of uniform magnet pieces arranged with at least one gap between the magnet pieces, the gap having a width to extend the uniformity of a resulting magnetic field region of the magnet assembly relative to a magnet field region of a magnet assembly with the same pieces but without the at least one gap.
A magnet assembly comprising:
- a toroidal magnet and a ferromagnetic ring extending around the toroidal magnet and having at least one gap or slot that extends the uniformity of a resulting magnetic field region of the magnet assembly relative to a magnet field region of a magnet assembly with the same toroidal magnet and ferromagnetic ring but without the at least one gap or slot in the ferromagnetic ring.
Dependencies are inferred from the claim text.