CN1604240B - 具有用于主磁场调整的可动永久磁体的永久磁体装置 - Google Patents

具有用于主磁场调整的可动永久磁体的永久磁体装置 Download PDF

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Publication number
CN1604240B
CN1604240B CN200410083157.1A CN200410083157A CN1604240B CN 1604240 B CN1604240 B CN 1604240B CN 200410083157 A CN200410083157 A CN 200410083157A CN 1604240 B CN1604240 B CN 1604240B
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China
Prior art keywords
permanent magnet
movable
imaging
yoke
magnet
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Expired - Lifetime
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CN200410083157.1A
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English (en)
Chinese (zh)
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CN1604240A (zh
Inventor
X·黄
E·T·拉斯卡里斯
K·M·阿姆
B·C·阿姆
M·A·小帕尔莫
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General Electric Co
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General Electric Co
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0273—Magnetic circuits with PM for magnetic field generation
    • H01F7/0278—Magnetic circuits with PM for magnetic field generation for generating uniform fields, focusing, deflecting electrically charged particles
    • H01F7/0284—Magnetic circuits with PM for magnetic field generation for generating uniform fields, focusing, deflecting electrically charged particles using a trimmable or adjustable magnetic circuit, e.g. for a symmetric dipole or quadrupole magnetic field
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/383—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using permanent magnets

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
CN200410083157.1A 2003-09-29 2004-09-29 具有用于主磁场调整的可动永久磁体的永久磁体装置 Expired - Lifetime CN1604240B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/672720 2003-09-29
US10/672,720 US7148689B2 (en) 2003-09-29 2003-09-29 Permanent magnet assembly with movable permanent body for main magnetic field adjustable

Publications (2)

Publication Number Publication Date
CN1604240A CN1604240A (zh) 2005-04-06
CN1604240B true CN1604240B (zh) 2011-06-08

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CN200410083157.1A Expired - Lifetime CN1604240B (zh) 2003-09-29 2004-09-29 具有用于主磁场调整的可动永久磁体的永久磁体装置

Country Status (4)

Country Link
US (1) US7148689B2 (enExample)
JP (1) JP4630617B2 (enExample)
CN (1) CN1604240B (enExample)
IT (1) ITMI20041729A1 (enExample)

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EP2316121A4 (en) * 2008-06-24 2012-01-11 Alberta Health Services MAGNETIC ARRANGEMENT AND METHOD FOR DETERMINING A MAGNETIC FIELD FOR IMAGING VOLUME
US20100019598A1 (en) 2008-07-28 2010-01-28 Direct Drive Systems, Inc. Rotor for an electric machine
CN202794554U (zh) 2009-04-21 2013-03-13 艾斯拜克特磁铁技术有限公司 具有实心面板和扫描磁头的永磁体设备
WO2011001429A1 (en) 2009-06-30 2011-01-06 Aspect Magnet Technologies Ltd. A cage in an mrd with a fastening/attenuating system
US8448110B2 (en) * 2009-11-24 2013-05-21 International Business Machines Corporation Method to reduce delay variation by sensitivity cancellation
CN104459584B (zh) * 2009-12-02 2018-03-20 纳纳利塞斯公司 用于产生均匀磁场的方法和装置
US11278461B2 (en) 2010-07-07 2022-03-22 Aspect Imaging Ltd. Devices and methods for a neonate incubator, capsule and cart
US10076266B2 (en) 2010-07-07 2018-09-18 Aspect Imaging Ltd. Devices and methods for a neonate incubator, capsule and cart
US10470686B2 (en) * 2012-12-26 2019-11-12 Koninklijke Philips N.V. Accessible magnetic resonance imaging scanner system for magnetic resonance guided interventional procedures
JP6775215B2 (ja) * 2015-04-01 2020-10-28 ザ フロリダ ステイト ユニバーシティー リサーチ ファウンデーション， インコーポレイテッドＴｈｅ Ｆｌｏｒｉｄａ Ｓｔａｔｅ Ｕｎｉｖｅｒｓｉｔｙ Ｒｅｓｅａｒｃｈ Ｆｏｕｎｄａｔｉｏｎ， Ｉｎｃｏｒｐｏｒａｔｅｄ 鉄系超伝導永久磁石およびその製造方法
JP7218988B2 (ja) 2015-06-19 2023-02-07 マグネート ベー．フェー． パックスクリーン型磁気熱量素子
CN105390229B (zh) * 2015-12-10 2018-11-06 沈阳东软医疗系统有限公司 一种永磁磁体及用于核磁共振成像系统的磁体装置
US11287497B2 (en) 2016-08-08 2022-03-29 Aspect Imaging Ltd. Device, system and method for obtaining a magnetic measurement with permanent magnets
US10224135B2 (en) 2016-08-08 2019-03-05 Aspect Imaging Ltd. Device, system and method for obtaining a magnetic measurement with permanent magnets
US11988730B2 (en) 2016-08-08 2024-05-21 Aspect Imaging Ltd. Device, system and method for obtaining a magnetic measurement with permanent magnets
US10847294B2 (en) 2017-07-10 2020-11-24 Aspect Imaging Ltd. System for generating a magnetic field
CN108375744B (zh) * 2018-03-21 2024-07-19 苏州佳祺仕软件技术有限公司 一种磁铁固定治具
CN113366329A (zh) * 2018-11-29 2021-09-07 爱普斯陶有限公司 具有混合相磁体环的轻质不对称磁体阵列
US11204405B1 (en) 2019-07-22 2021-12-21 Andrew F. McDowell Dynamic stabilization of magnetic fields
US12374479B2 (en) * 2023-02-14 2025-07-29 Banner Engineering Corp. Magnetic mount assembly

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Also Published As

Publication number Publication date
CN1604240A (zh) 2005-04-06
US20050068140A1 (en) 2005-03-31
ITMI20041729A1 (it) 2004-12-10
US7148689B2 (en) 2006-12-12
JP4630617B2 (ja) 2011-02-09
JP2005103266A (ja) 2005-04-21

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