ITMI20041729A1 - "complesso di magnete permanente mobile per la regolazione del campo magnetico principale" - Google Patents

"complesso di magnete permanente mobile per la regolazione del campo magnetico principale"

Info

Publication number
ITMI20041729A1
ITMI20041729A1 IT001729A ITMI20041729A ITMI20041729A1 IT MI20041729 A1 ITMI20041729 A1 IT MI20041729A1 IT 001729 A IT001729 A IT 001729A IT MI20041729 A ITMI20041729 A IT MI20041729A IT MI20041729 A1 ITMI20041729 A1 IT MI20041729A1
Authority
IT
Italy
Prior art keywords
adjustment
magnetic field
permanent magnet
main magnetic
mobile permanent
Prior art date
Application number
IT001729A
Other languages
English (en)
Italian (it)
Inventor
Bruce Campbell Amm
Kathleen Melaine Amm
Xianrui Huang
Evangelos Trifon Laskaris
Jr Michael Anthony Palmo
Original Assignee
Gen Electric
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gen Electric filed Critical Gen Electric
Publication of ITMI20041729A1 publication Critical patent/ITMI20041729A1/it

Links

Classifications

    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
IT001729A 2003-09-29 2004-09-10 "complesso di magnete permanente mobile per la regolazione del campo magnetico principale" ITMI20041729A1 (it)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ITMI20041729A1 true ITMI20041729A1 (it) 2004-12-10

Family

ID=34376449

Family Applications (1)

Application Number Title Priority Date Filing Date
IT001729A ITMI20041729A1 (it) 2003-09-29 2004-09-10 "complesso di magnete permanente mobile per la regolazione del campo magnetico principale"

Country Status (4)

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

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7423431B2 (en) * 2003-09-29 2008-09-09 General Electric Company Multiple ring polefaceless permanent magnet and method of making
GB2422905B (en) * 2005-02-04 2007-02-14 Siemens Magnet Technology Ltd Material for electrical isolation and vibro-acoustic performance
US7710081B2 (en) * 2006-10-27 2010-05-04 Direct Drive Systems, Inc. Electromechanical energy conversion systems
US7759938B2 (en) * 2007-02-05 2010-07-20 Morpho Detection, Inc. Apparatus and method for varying magnetic field strength in magnetic resonance measurements
EP1962100A1 (en) * 2007-02-20 2008-08-27 Esaote S.p.A. Magnetic structure for MRI machines and MRI machine particularly for orthopedic or rheumatologic applications
WO2008109126A1 (en) * 2007-03-06 2008-09-12 Harvard University Otd (Office Of Technology Development) Permanent magnet system
DE102007014224A1 (de) 2007-03-24 2008-09-25 Abiomed Europe Gmbh Blutpumpe mit Mikromotor
JP5012572B2 (ja) * 2008-02-29 2012-08-29 富士通株式会社 マグネトロンスパッタ装置用磁石ユニット
EP2511724B1 (en) * 2008-06-24 2019-03-13 Alberta Health Services Method of defining a magnetic field for an imaging volume
US8183734B2 (en) * 2008-07-28 2012-05-22 Direct Drive Systems, Inc. Hybrid winding configuration of an electric machine
US8604794B2 (en) 2009-04-21 2013-12-10 Aspect Imaging Ltd Permanent magnet arrangement with solid facing plate and scanning magnet head
EP2453250B1 (en) 2009-06-30 2019-06-12 Aspect Imaging Ltd. A cage in an magnetic resonance device 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
WO2011066652A1 (en) * 2009-12-02 2011-06-09 Nanalysis Corp. Method and apparatus for producing homogeneous magnetic fields
US10076266B2 (en) 2010-07-07 2018-09-18 Aspect Imaging Ltd. Devices and methods for a neonate incubator, capsule and cart
US11278461B2 (en) 2010-07-07 2022-03-22 Aspect Imaging Ltd. Devices and methods for a neonate incubator, capsule and cart
WO2014102641A1 (en) * 2012-12-26 2014-07-03 Koninklijke Philips N.V. Accessible magnetic resonance imaging scanner system and method of operation thereof
EP3278342B1 (en) * 2015-04-01 2020-11-25 The Florida State University Research Foundation Inc. Iron-based superconducting permanent magnet and method of manufacture
EP3311081B1 (en) 2015-06-19 2019-05-15 Basf Se Packed-screen type magnetocaloric element
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
KR20210096188A (ko) * 2018-11-29 2021-08-04 엡시타우 엘티디. 혼합 위상 자석 고리들을 갖춘 경량 비대칭 자석 배열체들
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

Family Cites Families (69)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1509923A (en) * 1974-04-30 1978-05-04 Strathearn Audio Ltd Pivoted gramophone pick-up arm control arrangements
US3899762A (en) * 1974-10-03 1975-08-12 Permag Magnetics Corp Permanent magnetic structure
US4496395A (en) 1981-06-16 1985-01-29 General Motors Corporation High coercivity rare earth-iron magnets
US4540453A (en) 1982-10-28 1985-09-10 At&T Technologies Magnetically soft ferritic Fe-Cr-Ni alloys
JPH03170643A (ja) 1983-08-04 1991-07-24 Sumitomo Special Metals Co Ltd 永久磁石用合金
JPS60239005A (ja) * 1984-05-11 1985-11-27 Sumitomo Special Metals Co Ltd 磁界発生装置
JPS60166110U (ja) * 1984-04-11 1985-11-05 住友特殊金属株式会社 磁界発生装置
US4672346A (en) 1984-04-11 1987-06-09 Sumotomo Special Metal Co., Ltd. Magnetic field generating device for NMR-CT
JPS61218120A (ja) * 1985-03-23 1986-09-27 Sumitomo Special Metals Co Ltd 磁界発生装置
US4667123A (en) 1985-11-20 1987-05-19 The Garrett Corporation Two pole permanent magnet rotor construction for toothless stator electrical machine
JPS62139304A (ja) * 1985-12-13 1987-06-23 Hitachi Metals Ltd 磁界均一性のよい磁気回路
US4679022A (en) 1985-12-27 1987-07-07 Sumitomo Special Metal Co. Ltd. Magnetic field generating device for NMR-CT
US4827235A (en) * 1986-07-18 1989-05-02 Kabushiki Kaisha Toshiba Magnetic field generator useful for a magnetic resonance imaging instrument
DE3779715T2 (de) 1986-09-27 1993-01-28 Sumitomo Spec Metals Vorrichtung zur erzeugung eines magnetfeldes fuer rechnergesteuerte tomographie mittels magnetischer kernresonanz.
US4931760A (en) 1986-10-08 1990-06-05 Asahi Kasei Kogyo Kabushiki Kaisha Uniform magnetic field generator
JPS63241905A (ja) 1987-03-27 1988-10-07 Sumitomo Special Metals Co Ltd 磁界発生装置
US4998976A (en) 1987-10-07 1991-03-12 Uri Rapoport Permanent magnet arrangement
US5063934A (en) 1987-10-07 1991-11-12 Advanced Techtronics, Inc. Permanent magnet arrangement
US5320103A (en) 1987-10-07 1994-06-14 Advanced Techtronics, Inc. Permanent magnet arrangement
US4953555A (en) 1987-10-20 1990-09-04 The United States Of Americas As Represented By The Secretary Of The Army Permanent magnet structure for a nuclear magnetic resonance imager for medical diagnostics
JPH02141501A (ja) 1988-11-22 1990-05-30 Tdk Corp 永久磁石用合金粉末
JPH03131234A (ja) 1989-07-07 1991-06-04 Sumitomo Special Metals Co Ltd Ｍｒｉ用磁界発生装置
JPH0394732A (ja) * 1989-09-08 1991-04-19 Sumitomo Special Metals Co Ltd Ｍｒｉ用磁界発生装置
JPH03180006A (ja) * 1989-12-08 1991-08-06 Seiko Epson Corp 磁界発生装置
GB9009579D0 (en) 1990-04-27 1990-06-20 Oxford Advanced Tech Magnetic field generating assembly
US5252924A (en) * 1991-11-18 1993-10-12 Sumitomo Special Metals Co., Ltd. Magnetic field generating apparatus for MRI
JP2808198B2 (ja) 1990-07-02 1998-10-08 住友特殊金属株式会社 Ｍｒｉ用磁界発生装置とその製法
FR2665297B1 (fr) 1990-07-30 1992-10-09 Centre Nat Rech Scient Aimant permanent pour installation d'imagerie par resonance magnetique nucleaire.
DE69129687T2 (de) 1990-09-29 1999-03-11 Sumitomo Special Metals Co., Ltd., Osaka Vorrichtung zur Erzeugung eines Magnetfeldes für die Bildgebung mittels magnetischer Resonanz
JP2816256B2 (ja) * 1991-03-25 1998-10-27 株式会社日立製作所 コイル体
JPH04371136A (ja) * 1991-06-19 1992-12-24 Hitachi Medical Corp Ｍｒｉ装置用静磁場発生装置
DE69131940T2 (de) 1991-11-15 2000-08-17 Hitachi Medical Corp., Tokio/Tokyo Apparat zur Erzeugung von Magnetfeldern für die Bildgebung mittels magnetischer Resonanz
JP2767659B2 (ja) 1991-12-17 1998-06-18 信越化学工業株式会社 磁場発生装置
DE69318998T2 (de) 1992-02-15 1998-10-15 Santoku Metal Ind Legierungsblock für einen Dauermagnet, anisotropes Pulver für einen Dauermagnet, Verfahren zur Herstellung eines solchen und Dauermagneten
IL106779A0 (en) 1992-09-11 1993-12-08 Magna Lab Inc Permanent magnetic structure
GB2276946B (en) * 1993-04-08 1997-04-02 Oxford Magnet Tech Improvements in or relating to MRI magnets
FR2704975B1 (fr) 1993-05-03 1995-06-23 Commissariat Energie Atomique Structure d'aimant permanent pour la production d'une induction magnétique stable et homogène dans un volume donné.
DE69419096T2 (de) 1993-09-29 1999-10-28 Oxford Magnet Technology Ltd., Eynsham Verbesserungen an Magneten der Bilderzeugung mittels magnetischer Resonanz
JPH0831635A (ja) 1994-07-08 1996-02-02 Sumitomo Special Metals Co Ltd Ｍｒｉ用磁界発生装置
JP3106084B2 (ja) * 1995-03-13 2000-11-06 信越化学工業株式会社 磁石対向型永久磁石磁気回路
JP3014319B2 (ja) 1996-04-12 2000-02-28 信越化学工業株式会社 磁石対向型永久磁石回路
US6150911A (en) * 1996-07-24 2000-11-21 Odin Technologies Ltd. Yoked permanent magnet assemblies for use in medical applications
US5900793A (en) 1997-07-23 1999-05-04 Odin Technologies Ltd Permanent magnet assemblies for use in medical applications
JPH10174681A (ja) 1996-12-17 1998-06-30 Shin Etsu Chem Co Ltd 永久磁石磁気回路
IT1294051B1 (it) 1997-04-29 1999-03-15 Esaote Spa Struttura magnetica per la generazione di campi magnetici adatti all'uso nel rilevamento d'immagine in risonanza magnetica nucleare
WO1999015914A1 (en) 1997-09-25 1999-04-01 Odin Technologies Ltd. Magnetic apparatus for mri
JPH11127561A (ja) * 1997-10-22 1999-05-11 Denso Corp 磁石併用型回転電機の回転子及びその製造方法
IT1298022B1 (it) * 1997-12-05 1999-12-20 Esaote Spa Magnete permanente per il rilevamento d'immagini in risonaza magnetica nucleare.
EP0965305B1 (en) * 1997-12-26 2007-03-21 Neomax Co., Ltd. Mri magnetic field generator
US6255670B1 (en) * 1998-02-06 2001-07-03 General Electric Company Phosphors for light generation from light emitting semiconductors
EP1058933A4 (en) * 1998-02-09 2006-03-01 Odin Medical Technologies Ltd CONSTRUCTION PROCEDURE OF OPEN MAGNETS AND OPEN MAGNETIC DEVICE FOR MRI / MRI SENSORS
IT1305960B1 (it) * 1998-05-11 2001-05-21 Esaote Spa Struttura di magnete in particolare per macchine per il rilevamentod'immagine in risonanza magnetica nucleare.
US6281775B1 (en) * 1998-09-01 2001-08-28 Uri Rapoport Permanent magnet arrangement with backing plate
GB2341447B (en) * 1998-09-11 2003-08-20 Oxford Magnet Tech Temperature control system for a permanent magnetic mri system
US5942962A (en) 1998-10-02 1999-08-24 Quadrant Technology Dipole magnetic structure for producing uniform magnetic field
US6259252B1 (en) * 1998-11-24 2001-07-10 General Electric Company Laminate tile pole piece for an MRI, a method manufacturing the pole piece and a mold bonding pole piece tiles
US6120620A (en) 1999-02-12 2000-09-19 General Electric Company Praseodymium-rich iron-boron-rare earth composition, permanent magnet produced therefrom, and method of making
CN1251252C (zh) 1999-02-12 2006-04-12 通用电气公司 含有铈、钕和/或镨的铁－硼－稀土型永磁材料及其生产方法
US6489872B1 (en) * 1999-05-06 2002-12-03 New Mexico Resonance Unilateral magnet having a remote uniform field region for nuclear magnetic resonance
KR100319923B1 (ko) * 1999-05-10 2002-01-09 윤종용 자기공명영상장치용 자기장 발생 장치
DE60041792D1 (de) * 1999-11-16 2009-04-23 Hitachi Metals Ltd Magnetfeldgenerator mit einer Polstückeinheit
US6467157B1 (en) * 2000-01-26 2002-10-22 Odin Technologies, Ltd. Apparatus for construction of annular segmented permanent magnet
US20030011451A1 (en) 2000-08-22 2003-01-16 Ehud Katznelson Permanent magnet assemblies for use in medical applications
JP3559262B2 (ja) * 2000-10-06 2004-08-25 株式会社Ｎｅｏｍａｘ 磁界調整用装置、磁界調整方法および記録媒体
US6448772B1 (en) * 2000-10-06 2002-09-10 Sumitomo Special Metals Co., Ltd. Magnetic field adjusting apparatus, magnetic field adjusting method and recording medium
US6518754B1 (en) * 2000-10-25 2003-02-11 Baker Hughes Incorporated Powerful bonded nonconducting permanent magnet for downhole use
US6670877B2 (en) * 2001-01-25 2003-12-30 Uri Rapoport Field adjusting mechanisms and methods for permanent magnet arrangement with backplate
US6518867B2 (en) * 2001-04-03 2003-02-11 General Electric Company Permanent magnet assembly and method of making thereof
CN1400473A (zh) * 2001-07-27 2003-03-05 武汉宏建电气技术有限公司 磁共振成像系统用永久磁体装置及磁性材料在其内的分布

Also Published As

Publication number Publication date
CN1604240B (zh) 2011-06-08
US7148689B2 (en) 2006-12-12
CN1604240A (zh) 2005-04-06
JP4630617B2 (ja) 2011-02-09
JP2005103266A (ja) 2005-04-21
US20050068140A1 (en) 2005-03-31

Similar Documents

Publication Publication Date Title
ITMI20041729A1 (it) "complesso di magnete permanente mobile per la regolazione del campo magnetico principale"
NO20043996L (no) Fremgangsmate for frembringelse av API'er
DE602004001025D1 (de) Magnetischer Toner
DK1603633T3 (da) Lettelse af behandling via magnetisk stimulering
DE60235073D1 (de) Magnetfeldgenerator
DE602004019466D1 (de) Magnetischer Toner
EP1717468A4 (en) MAGNETIC BEARING ASSEMBLY
NO20034637L (no) NMR-logging i jordas magnetfelt
EP1911400A4 (en) MAGNETIC TOMOGRAPH
SE0400324L (sv) Förbättrad magnetisk tätning
EP1403648A4 (en) MAGNETIC SENSOR
ITRE20050009A1 (it) Dispositivo medico antireflusso basato sull'azione di magneti
NO20062387L (no) Novel imaging agents
DE502004008333D1 (de) Ringmagnet
DE50214121D1 (de) Magnetspulenanordnung
DE10393069D2 (de) Magnetresonanzanlage
DE602004015869D1 (de) Kreisförmiges Polstück und System für die Bildgebung mit magnetischer Resonanz
ITRM20050478A1 (it) Apparato per l'applicazione contemporanea della carbossiterapia e della mesoterapia.
DE60223840D1 (de) Magnetische tonerzusammensetzung
DE50306693D1 (de) Magnetisch induktiver durchflussmesser
DE602004026017D1 (de) Supraleitender Magnet
DE60226834D1 (de) Offener Hochfeld-MRI-Magnet mit reduzierter Vibration
DE60225125D1 (de) Magnetische resonanz-akustografie
NO20010417D0 (no) Magnetbrakett
BR8101156Y1 (pt) disposição construtiva introduzida no suporte para o estudo do campo magnético.