JPH0434896B2 - - Google Patents

Info

Publication number
JPH0434896B2
JPH0434896B2 JP63509237A JP50923788A JPH0434896B2 JP H0434896 B2 JPH0434896 B2 JP H0434896B2 JP 63509237 A JP63509237 A JP 63509237A JP 50923788 A JP50923788 A JP 50923788A JP H0434896 B2 JPH0434896 B2 JP H0434896B2
Authority
JP
Japan
Prior art keywords
magnet
magnetic field
correction
magnetic
magnets
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 - Lifetime
Application number
JP63509237A
Other languages
English (en)
Japanese (ja)
Other versions
JPH03501342A (ja
Inventor
Gii Obeeru
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.)
SANTORU NASHIONARU DO RA RUSHERUSHU SHIANTEIFUITSUKU
Original Assignee
SANTORU NASHIONARU DO RA RUSHERUSHU SHIANTEIFUITSUKU
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 SANTORU NASHIONARU DO RA RUSHERUSHU SHIANTEIFUITSUKU filed Critical SANTORU NASHIONARU DO RA RUSHERUSHU SHIANTEIFUITSUKU
Publication of JPH03501342A publication Critical patent/JPH03501342A/ja
Publication of JPH0434896B2 publication Critical patent/JPH0434896B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G01R33/387—Compensation of inhomogeneities
    • G01R33/3873—Compensation of inhomogeneities using ferromagnetic bodies ; Passive shimming

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP63509237A 1987-11-13 1988-11-10 Ｎｍｒ映像装置、不均一性を補正する方法、及びｎｍｒ映像装置に使用される磁石を作製する方法 Granted JPH03501342A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR87/15670 1987-11-13
FR8715670A FR2623324A1 (fr) 1987-11-13 1987-11-13 Dispositif d'imagerie rmn, procede de correction d'inhomogeneite et procede de realisation d'aimants mis en oeuvre dans le dispositif

Publications (2)

Publication Number Publication Date
JPH03501342A JPH03501342A (ja) 1991-03-28
JPH0434896B2 true JPH0434896B2 (enExample) 1992-06-09

Family

ID=9356736

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63509237A Granted JPH03501342A (ja) 1987-11-13 1988-11-10 Ｎｍｒ映像装置、不均一性を補正する方法、及びｎｍｒ映像装置に使用される磁石を作製する方法

Country Status (6)

Country Link
US (1) US5168231A (enExample)
EP (1) EP0393092B1 (enExample)
JP (1) JPH03501342A (enExample)
DE (1) DE3877972T2 (enExample)
FR (1) FR2623324A1 (enExample)
WO (1) WO1989004494A1 (enExample)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5045794A (en) * 1989-12-04 1991-09-03 General Electric Company Method of optimizing passive shim placement in magnetic resonance magnets
US5343183A (en) * 1990-11-09 1994-08-30 Mitsubishi Denki Kabushiki Kaisha Magnetic field correction device
JPH04181706A (ja) * 1990-11-15 1992-06-29 Mitsubishi Electric Corp 超電導マグネット装置
US6627003B2 (en) 2001-10-24 2003-09-30 Ge Medical Systems Global Technology Company, Llc NMR shim forming method
DE10214112B4 (de) * 2002-03-28 2006-01-26 Siemens Ag Shimkasten, Gradientenspulensystem und Magnetresonanzgerät zum Aufnehmen des Shimkastens
CN100434038C (zh) * 2004-03-05 2008-11-19 西门子（中国）有限公司 磁共振成像设备磁场的调节装置
AU2005230449B2 (en) * 2004-04-01 2010-02-18 Liposcience, Inc. NMR clinical analyzers and related methods, systems, modules and computer program products for clinical evaluation of biosamples
US7495537B2 (en) * 2005-08-10 2009-02-24 Stereotaxis, Inc. Method and apparatus for dynamic magnetic field control using multiple magnets
WO2007076252A1 (en) * 2005-12-20 2007-07-05 Koninklijke Philips Electronics, N.V. Magnetic resonance scanner with a longitudinal magnetic field gradient system
NZ571863A (en) * 2006-04-18 2011-05-27 Victoria Link Ltd Homogenous magnetic filed generator with a gap between magnet sub-arrays at the centre of an assembly
GB2439749B (en) * 2006-07-06 2010-03-03 Siemens Magnet Technology Ltd Passive shimming of magnet systems
JP5627415B2 (ja) 2010-11-24 2014-11-19 三菱電機株式会社 Ｍｒｉ用超電導マグネットの調整方法
DE102012016401A1 (de) * 2011-11-20 2013-05-23 Krohne Ag Magnetisierungsvorrichtung für ein kernmagnetisches Durchflussmessgerät
US9395222B2 (en) 2011-11-20 2016-07-19 Krohne Ag Magnetization device for a nuclear magnetic flow meter
DE102012016402B4 (de) * 2011-11-21 2025-02-06 Krohne Ag Magnetbaugruppe für ein kernmagnetisches Druchflussmessgerät

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5960346A (ja) * 1982-09-30 1984-04-06 Toshiba Corp 磁気共鳴イメージング装置用傾斜磁場コイルユニット
FR2549281B1 (fr) * 1983-06-28 1987-04-10 Cgr Mev Aimant susceptible de creer un champ magnetique uniforme
DE8419763U1 (de) * 1984-07-02 1986-03-20 Siemens AG, 1000 Berlin und 8000 München Kernspin-Tomographiegerät
NL8402249A (nl) * 1984-07-17 1986-02-17 Philips Nv Kernspin resonantie apparaat met een permanente magnetische magneet.
JPS61200452A (ja) * 1985-03-01 1986-09-05 Sanyo Electric Co Ltd 核磁気共鳴撮像装置における均一磁場形成方法
NL8502340A (nl) * 1985-08-26 1987-03-16 Philips Nv Magnetisch resonantie apparaat met veld homogeniserende magnetische elementen.
DE3540080A1 (de) * 1985-11-12 1987-05-14 Siemens Ag Kernspintomographiegeraet
GB2184243B (en) * 1985-12-09 1989-12-20 Picker Int Ltd Electromagnet arrangements
JPS62193230A (ja) * 1986-02-20 1987-08-25 Toshiba Corp 磁気共鳴イメ−ジング装置
US4771244A (en) * 1986-12-03 1988-09-13 General Electric Company Method of passively shimming magnetic resonance magnets
JPH02502967A (ja) * 1987-04-15 1990-09-20 オックスフォード　マグネット　テクノロジィ　リミテッド 磁界発生装置
US4758813A (en) * 1987-06-24 1988-07-19 Field Effects, Inc. Cylindrical NMR bias magnet apparatus employing permanent magnets and methods therefor

Also Published As

Publication number Publication date
DE3877972T2 (de) 1993-05-13
WO1989004494A1 (fr) 1989-05-18
DE3877972D1 (de) 1993-03-11
US5168231A (en) 1992-12-01
EP0393092B1 (fr) 1993-01-27
EP0393092A1 (fr) 1990-10-24
FR2623324A1 (fr) 1989-05-19
JPH03501342A (ja) 1991-03-28

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