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1. WO2020109895 - LIGHTWEIGHT ASYMMETRIC MAGNET ARRAYS WITH MIXED-PHASE MAGNET RINGS

Publication Number WO/2020/109895
Publication Date 04.06.2020
International Application No. PCT/IB2019/059645
International Filing Date 10.11.2019
IPC
G01R 33/383 2006.01
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33Arrangements or instruments for measuring magnetic variables
20involving magnetic resonance
28Details of apparatus provided for in groups G01R33/44-G01R33/6496
38Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
383using permanent magnets
H01F 7/02 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
7Magnets
02Permanent magnets
CPC
G01R 33/383
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33Arrangements or instruments for measuring magnetic variables
20involving magnetic resonance
28Details of apparatus provided for in groups G01R33/44 - G01R33/64
38Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
383using permanent magnets
H01F 7/0252
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
7Magnets
02Permanent magnets ; [PM]
0231Magnetic circuits with PM for power or force generation
0252PM holding devices
H01F 7/0273
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
7Magnets
02Permanent magnets ; [PM]
0273Magnetic circuits with PM for magnetic field generation
Applicants
  • EPSITAU LTD. [IL]/[IL]
Inventors
  • HAHAM HAY, Noam
Agents
  • KLIGLER & ASSOCIATES PATENT ATTORNEYS LTD.
Priority Data
62/772,63829.11.2018US
62/780,27216.12.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) LIGHTWEIGHT ASYMMETRIC MAGNET ARRAYS WITH MIXED-PHASE MAGNET RINGS
(FR) RÉSEAUX D'AIMANTS ASYMÉTRIQUES LÉGERS AVEC ANNEAUX MAGNÉTIQUES À PHASE MIXTE
Abstract
(EN)
A magnet array (400) includes multiple magnet (411-420) rings and a frame. The multiple magnet rings are positioned along a longitudinal axis and coaxially with the longitudinal axis, wherein at least two of the magnet rings include mixed-phase magnet rings (411, 413) that are phase-dissimilar. The multiple magnet rings are configured to jointly generate a magnetic field along a direction parallel to the longitudinal axis of at least a given level of uniformity inside a predefined inner volume (430). The frame is configured to fixedly hold the multiple magnet rings in place.
(FR)
Cette invention concerne un réseau d'aimants (400), comprenant de multiples anneaux magnétiques (411-420) et un cadre. Les multiples anneaux magnétiques sont positionnés le long d'un axe longitudinal et de manière coaxiale à l'axe longitudinal, au moins deux des anneaux magnétiques comprenant des anneaux magnétiques à phase mixte (411, 413) qui sont dissemblables en phase. Les multiples anneaux magnétiques sont configurés pour générer conjointement un champ magnétique le long d'une direction parallèle à l'axe longitudinal d'au moins un niveau d'uniformité donné à l'intérieur d'un volume interne prédéfini (430). Le cadre est configuré pour retenir en place fixement les multiples anneaux magnétiques.
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