Invention Grant
- Patent Title: Magnetic circuit for magnetic field generator
- Patent Title (中): 磁场发生器磁路
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Application No.: US14409181Application Date: 2013-06-26
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Publication No.: US09576712B2Publication Date: 2017-02-21
- Inventor: Eiji Sugiyama , Masaaki Aoki
- Applicant: Hitachi Metals, Ltd.
- Applicant Address: JP Tokyo
- Assignee: Hitachi Metals, Ltd.
- Current Assignee: Hitachi Metals, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Bozicevic, Field & Francis LLP
- Agent Rudy J. Ng; Bret E. Field
- Priority: JP2012-148864 20120702
- International Application: PCT/JP2013/067505 WO 20130626
- International Announcement: WO2014/007122 WO 20140109
- Main IPC: H01F1/00
- IPC: H01F1/00 ; H01F7/02 ; G01R33/38 ; G01R33/383 ; G01N24/10 ; G01R33/60 ; G01R33/3873
Abstract:
A magnetic circuit that forms an arc-shaped magnetic field space is provided. Of two magnets constituting a first magnetic circuit 10, a first magnetic pole 1 is provided with a first yoke 11 that is arc-shaped in planar view, a first magnet 13 that is arc-shaped in planar view and a magnetic pole piece 15. On the other hand, a second magnetic pole 2 is provided with a second yoke 21 that is arc-shaped in planar view, a second magnet 23 that is arc-shaped in planar view and a magnetic pole piece 25. The first magnetic pole piece 15 and the second magnetic pole piece 25 are disposed so as to be opposed to each other while being separated from each other. The first magnet 13 and the second magnet 23 are formed by arranging a plurality of small magnets.
Public/Granted literature
- US20150137922A1 Magnetic Circuit Public/Granted day:2015-05-21
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