DE3673187D1 - Elektromagnet. - Google Patents

Elektromagnet.

Info

Publication number
DE3673187D1
DE3673187D1 DE8686300317T DE3673187T DE3673187D1 DE 3673187 D1 DE3673187 D1 DE 3673187D1 DE 8686300317 T DE8686300317 T DE 8686300317T DE 3673187 T DE3673187 T DE 3673187T DE 3673187 D1 DE3673187 D1 DE 3673187D1
Authority
DE
Germany
Prior art keywords
air gap
magnetic field
laminae
pole pieces
electromagnet
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE8686300317T
Other languages
English (en)
Inventor
John Rowland Mallard
Frank Elsden Neale
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEALE, FRANK ELSDEN, ABERDEEN, GB
Original Assignee
BASIC MEDICAL IMAGING Ltd
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 BASIC MEDICAL IMAGING Ltd filed Critical BASIC MEDICAL IMAGING Ltd
Application granted granted Critical
Publication of DE3673187D1 publication Critical patent/DE3673187D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/20—Electromagnets; Actuators including electromagnets without armatures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/02—Cores, Yokes, or armatures made from sheets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Magnetically Actuated Valves (AREA)
  • Liquid Crystal (AREA)
  • Valve Device For Special Equipments (AREA)
  • Electromagnets (AREA)
DE8686300317T 1985-01-21 1986-01-17 Elektromagnet. Expired - Fee Related DE3673187D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB858501442A GB8501442D0 (en) 1985-01-21 1985-01-21 Electromagnet

Publications (1)

Publication Number Publication Date
DE3673187D1 true DE3673187D1 (de) 1990-09-13

Family

ID=10573148

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686300317T Expired - Fee Related DE3673187D1 (de) 1985-01-21 1986-01-17 Elektromagnet.

Country Status (5)

Country Link
US (1) US4656449A (de)
EP (1) EP0192331B1 (de)
AT (1) ATE55506T1 (de)
DE (1) DE3673187D1 (de)
GB (1) GB8501442D0 (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3616078A1 (de) * 1986-05-13 1987-11-19 Bruker Analytische Messtechnik Elektromagnetsystem fuer die kernspintomographie
US4827235A (en) * 1986-07-18 1989-05-02 Kabushiki Kaisha Toshiba Magnetic field generator useful for a magnetic resonance imaging instrument
JPS63241905A (ja) * 1987-03-27 1988-10-07 Sumitomo Special Metals Co Ltd 磁界発生装置
EP0311294A3 (de) * 1987-10-05 1990-08-22 THE GENERAL ELECTRIC COMPANY, p.l.c. Magnet
US4985678A (en) * 1988-10-14 1991-01-15 Picker International, Inc. Horizontal field iron core magnetic resonance scanner
US5134374A (en) * 1989-06-01 1992-07-28 Applied Superconetics Magnetic field control apparatus
US5117188A (en) * 1990-10-29 1992-05-26 General Atomics Quasi-open magnet configuration for use in magnetic resonance imaging
US5414399A (en) * 1991-12-19 1995-05-09 Applied Superconetics, Inc. Open access superconducting MRI magnet having an apparatus for reducing magnetic hysteresis in superconducting MRI systems
US5412363A (en) * 1991-12-20 1995-05-02 Applied Superconetics, Inc. Open access superconducting MRI magnet
US6023165A (en) * 1992-09-28 2000-02-08 Fonar Corporation Nuclear magnetic resonance apparatus and methods of use and facilities for incorporating the same
US5378988A (en) * 1993-01-22 1995-01-03 Pulyer; Yuly M. MRI system having high field strength open access magnet
GB2276946B (en) * 1993-04-08 1997-04-02 Oxford Magnet Tech Improvements in or relating to MRI magnets
FI933834A (fi) * 1993-09-01 1995-03-02 Picker Nordstar Oy Magneettikuvauslaitteen napakenkä
GB9403321D0 (en) * 1994-02-22 1994-04-13 Marconi Gec Ltd Magnet systems
US5418462A (en) * 1994-05-02 1995-05-23 Applied Superconetics, Inc. Method for determining shim placement on tubular magnet
US5675305A (en) * 1996-07-17 1997-10-07 Picker International, Inc. Multiple driven C magnet
US6097187A (en) * 1997-08-21 2000-08-01 Picker International, Inc. MRI magnet with fast ramp up capability for interventional imaging
DE19928622A1 (de) * 1999-06-23 2000-12-28 Fev Motorentech Gmbh Längsgeblechter Jochkörper für einen Elektromagneten
US6909284B2 (en) * 2000-12-22 2005-06-21 Brigham And Women's Hospital High efficiency planar open magnet MRI system structured and arranged to provide orthogonal ferrorefractory effect
DE10117595C1 (de) * 2001-04-07 2002-12-05 Bruker Biospin Gmbh Asymmetrische Anordnung permanentmagnetischer Elemente für eine Magnetresonanzapparatur und Verfahren zur Herstellung einer solchen Magnetanordnung
DE10147984B4 (de) * 2001-09-28 2007-10-11 Siemens Ag Magnetresonanz-Untersuchungsgerät mit einer Einrichtung zur Erzeugung eines homogenen Magnetfeldes und Verfahren zur Verbesserung der Homogenität eines Magnetfeldes
WO2005093450A1 (en) * 2004-03-29 2005-10-06 Koninklijke Philips Electronics N.V. System for magnetic resonance imaging
US20080045777A1 (en) * 2005-06-09 2008-02-21 Jal Jassawalla Electromagnetic drive for a ventricular assist device
US20070187613A1 (en) * 2006-02-16 2007-08-16 Kahilainen Jukka O Method for supporting an electrode
EP2812901B1 (de) * 2012-02-10 2021-09-15 Nanalysis Corp. Polstück zur verwendung in einem halbach-array
KR20150089754A (ko) * 2014-01-28 2015-08-05 엘지이노텍 주식회사 무선 전력 수신 장치 및 단말기

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1107437B (de) * 1960-08-12 1961-05-25 Licentia Gmbh Elektromagnet fuer Vibratoren mit einem Schnittbandkern
FR1332411A (fr) * 1962-08-27 1963-07-12 Brown Disposition pour la réduction du bruit dans les transformateurs
DE1257282B (de) * 1964-01-22 1967-12-28 Siemens Ag Magnetanordnung mit aus Blechen geschichteten Polteilen, die einen Luftspalt mit in seiner Laengsrichtung zunehmender lichter Weite einschliessen
US3645377A (en) * 1968-12-25 1972-02-29 Igor Mikhailovich Kirko Method of orientation of nonmagnetic current-conducting bodies magnetic field and devices for carrying same into effect
FR2382756A1 (fr) * 1977-03-01 1978-09-29 Anvar Dispositif electromagnetique pour produire un champ magnetique continu
DE3110993A1 (de) * 1981-03-20 1982-09-30 Forschungsinstitut Prof. Dr.-Ing.habil., Dr.phil.nat. Karl Otto Lehmann, Nachf. GmbH & Cie, 7570 Baden-Baden Schichtkern fuer induktive bauteile
DE3137391A1 (de) * 1981-09-19 1983-04-07 Robert Bosch Gmbh, 7000 Stuttgart Verfahren zur herstellung geblechter kerne
GB8305303D0 (en) * 1983-02-25 1983-03-30 Picker Int Ltd Magnets

Also Published As

Publication number Publication date
US4656449A (en) 1987-04-07
EP0192331B1 (de) 1990-08-08
EP0192331A1 (de) 1986-08-27
ATE55506T1 (de) 1990-08-15
GB8501442D0 (en) 1985-02-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: NEALE, FRANK ELSDEN, ABERDEEN, GB

8328 Change in the person/name/address of the agent

Free format text: ZIMMERMANN, H., DIPL.-ING. GRAF VON WENGERSKY, A., DIPL.-ING. KRAUS, J., DIPL.-PHYS. DR.RER.NAT., PAT.-ANWAELTE, 8000 MUENCHEN

8339 Ceased/non-payment of the annual fee