The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 13, 2021
Filed:
Nov. 25, 2019
Bruker Biospin Gmbh, Rheinstetten, DE;
BRUKER BIOSPIN GMBH, Rheinstetten, DE;
Abstract
A magnet arrangement having a hollow-cylindrical magnet element that has an axial length Land an inner radius R, is constructed from magnet segments arranged concentrically around the z-axis, and has a Halbach magnetization. At least one ring-shaped magnet element has a notched, hollow-cylindrical cutout extending circumferentially around the z-axis symmetrically with respect to the plane z=0, the axial extent Lof the cutout being less than the axial length Lof the magnet element. The cutout has a radial depth Tand an axial length L<Lbetween the z-positions z=−zto z=+z. The radial depth Tand the axial length Lof the cutout are to ensure that the remaining inhomogeneity of the homogenous magnetic field Bin a predefined measurement volume having an axial plateau length Lin the center of the magnet arrangement does not exceed 10 ppm.