DE69412192D1 - Magnetanordnung - Google Patents

Magnetanordnung

Info

Publication number
DE69412192D1
DE69412192D1 DE69412192T DE69412192T DE69412192D1 DE 69412192 D1 DE69412192 D1 DE 69412192D1 DE 69412192 T DE69412192 T DE 69412192T DE 69412192 T DE69412192 T DE 69412192T DE 69412192 D1 DE69412192 D1 DE 69412192D1
Authority
DE
Germany
Prior art keywords
magnetic arrangement
magnetic
arrangement
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
DE69412192T
Other languages
English (en)
Other versions
DE69412192T2 (de
Inventor
Peter Hanley
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.)
Baker Hughes Holdings LLC
Original Assignee
Oxford Instruments UK 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 Oxford Instruments UK Ltd filed Critical Oxford Instruments UK Ltd
Application granted granted Critical
Publication of DE69412192D1 publication Critical patent/DE69412192D1/de
Publication of DE69412192T2 publication Critical patent/DE69412192T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01R33/3808—Magnet assemblies for single-sided MR wherein the magnet assembly is located on one side of a subject only; Magnet assemblies for inside-out MR, e.g. for MR in a borehole or in a blood vessel, or magnet assemblies for fringe-field MR
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Vascular Medicine (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
DE69412192T 1993-02-12 1994-02-07 Magnetanordnung Expired - Fee Related DE69412192T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB939302837A GB9302837D0 (en) 1993-02-12 1993-02-12 Magnet assembly
PCT/GB1994/000226 WO1994018577A1 (en) 1993-02-12 1994-02-07 Magnet assembly

Publications (2)

Publication Number Publication Date
DE69412192D1 true DE69412192D1 (de) 1998-09-10
DE69412192T2 DE69412192T2 (de) 1998-12-10

Family

ID=10730339

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69412192T Expired - Fee Related DE69412192T2 (de) 1993-02-12 1994-02-07 Magnetanordnung

Country Status (6)

Country Link
US (1) US5488342A (de)
EP (1) EP0636250B1 (de)
JP (1) JPH07505959A (de)
DE (1) DE69412192T2 (de)
GB (1) GB9302837D0 (de)
WO (1) WO1994018577A1 (de)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9412012D0 (en) 1994-06-15 1994-08-03 Oxford Instr Uk Ltd Magnet assembly
GB9523415D0 (en) * 1995-11-15 1996-01-17 Oxford Instr Uk Ltd Magnetic field generating assembly
US5712566A (en) * 1996-02-23 1998-01-27 Western Atlas International, Inc. Nuclear magnetic resonance apparatus and method
US5929732A (en) * 1997-04-17 1999-07-27 Lockheed Martin Corporation Apparatus and method for amplifying a magnetic beam
US6018243A (en) * 1997-10-29 2000-01-25 Western Atlas International, Inc. NMR well logging apparatus and method
US6411087B1 (en) 1999-05-17 2002-06-25 University Of Houston NMR logging tool with Hi-Tc trap field magnet
US6445180B1 (en) 2000-06-28 2002-09-03 Baker Hughes Incorporated Nuclear magnetic resonance tool with active RF spoiler antenna
US6348792B1 (en) 2000-07-27 2002-02-19 Baker Hughes Incorporated Side-looking NMR probe for oil well logging
US6525535B2 (en) 2000-10-02 2003-02-25 Baker Hughes Incorporated NMR apparatus for oil well logging of large and small diameter wells
US6518754B1 (en) 2000-10-25 2003-02-11 Baker Hughes Incorporated Powerful bonded nonconducting permanent magnet for downhole use
EP1352258B1 (de) * 2001-01-12 2009-03-11 Oxford Instruments Superconductivity Limited Verfahren und vorrichtung zur erzeugung eines magnetfeldes
US6720765B2 (en) * 2001-05-30 2004-04-13 Baker Hughes Incorporated High-resolution high-speed NMR well logging device
US7295005B2 (en) * 2001-05-30 2007-11-13 Baker Hughes Incorporated Azimuthal NMR imaging while drilling
JP4045769B2 (ja) * 2001-10-10 2008-02-13 株式会社日立製作所 磁場発生装置及びこれを用いるｍｒｉ装置
EP1563325A2 (de) * 2002-11-19 2005-08-17 Baker Huges Incorporated Azimuthale nmr bildformung von formationseigenschaften aus einem bohrloch
GR1004895B (el) * 2003-06-30 2005-05-23 �. ������ Μεθοδος και συσκευη επαγωγης ιοντων και πολυ- ενεργοποιησης ατομων με μαγνητικο πυρηνικο συντονισμο- nmr και ηλεκτρονικο παραμαγνητικο συντονισμο -epr, μεσω ηλεκτρονικης διαταξεως - διακοπτη η διακοπτη πλασματος
GB2449032B (en) * 2006-02-17 2009-12-23 Baker Hughes Inc Compensation of magnetic influence in a mwd system
DE602006002264D1 (de) * 2006-06-01 2008-09-25 Varian Spa Magnetanordnung für eine Sputter-Ionenpumpe
JP5147072B2 (ja) * 2006-07-31 2013-02-20 国立大学法人 岡山大学 磁界生成器及びこの磁界生成器を備えた核磁気共鳴装置
EP1944617A1 (de) * 2007-01-11 2008-07-16 RWTH Aachen Verfahren und Vorrichtung zur Bereitstellung eines sensitiven Volumens für einseitige NMR
US20090309682A1 (en) * 2008-06-13 2009-12-17 Northrop Grumman Guidance And Electronic Company, Inc. Eight-fold dipole magnet array for generating a uniform magnetic field
WO2010090886A2 (en) * 2009-01-23 2010-08-12 Yarger Eric J Magnetic structure
US8373412B2 (en) * 2009-01-23 2013-02-12 Baker Hughes Incorporated NMR-LWD imaging tool
US8324895B2 (en) * 2009-01-23 2012-12-04 Baker Hughes Incorporated MWD/LWD NMR imaging with long echo trains
RU2583881C1 (ru) * 2014-12-31 2016-05-10 Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Казанский (Приволжский) Федеральный Университет" (ФГАОУ ВПО КФУ) Устройство для осуществления ядерного магнитного каротажа в поле постоянного магнита
AR103439A1 (es) * 2015-03-05 2017-05-10 Halliburton Energy Services Inc Aparato, sistemas y métodos de resonancia magnética nuclear
US10684387B2 (en) 2015-09-24 2020-06-16 Weatherford Technology Holdings, Llc Logging tool having side-looking nuclear magnetic resonance sensor
RU2645909C1 (ru) * 2016-12-26 2018-02-28 федеральное государственное автономное образовательное учреждение высшего образования "Казанский (Приволжский) федеральный университет" (ФГАОУ ВО КФУ) Способ ядерного магнитного каротажа и устройство для его реализации
CA3046921C (en) * 2017-03-09 2021-02-16 Halliburton Energy Services, Inc. Downhole nuclear magnetic resonance tool with active compensation for motional effects
US10564237B2 (en) 2017-04-21 2020-02-18 Massachusetts Institute Of Technology Single-sided magnets for remote nuclear magnetic resonance measurements
RU2679630C1 (ru) * 2018-05-21 2019-02-12 федеральное государственное автономное образовательное учреждение высшего образования "Казанский (Приволжский) федеральный университет" (ФГАОУ ВО КФУ) Способ ядерного магнитного каротажа и устройство для его реализации
EA038050B1 (ru) * 2019-01-30 2021-06-29 Общество с Ограниченной Ответственностью "ТНГ-Групп" Способ ядерного магнитного каротажа и устройство для его реализации

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4350955A (en) * 1980-10-10 1982-09-21 The United States Of America As Represented By The United States Department Of Energy Magnetic resonance apparatus
GB2112645B (en) * 1981-12-24 1985-07-31 Eizo Nishino Magnetic medical appliance
US4720692A (en) * 1984-10-24 1988-01-19 The United States Of America As Represented By The Secretary Of The Air Force Long, narrow, uniform magnetic field apparatus and method
US4658228A (en) * 1986-05-01 1987-04-14 The United States Of America As Represented By The Secreatry Of The Army Confinement of longitudinal, axially symmetric, magnetic fields to annular regions with permanent magnets
US4654618A (en) * 1986-05-01 1987-03-31 The United States Of America As Represented By The Secretary Of The Army Confinement of kOe magnetic fields to very small areas in miniature devices
US4717876A (en) * 1986-08-13 1988-01-05 Numar NMR magnet system for well logging
US5063934A (en) * 1987-10-07 1991-11-12 Advanced Techtronics, Inc. Permanent magnet arrangement
US4810986A (en) * 1988-02-26 1989-03-07 The United States Of America As Represented By The Secretary Of The Army Local preservation of infinite, uniform magnetization field configuration under source truncation
GB8912601D0 (en) * 1989-06-01 1989-07-19 Oxford Magnet Tech Magnetic field generating apparatus
US5162770A (en) * 1990-02-22 1992-11-10 Esaote Biomedica Terminations of cylindrical permanent magnets
US5095271A (en) * 1990-05-14 1992-03-10 General Atomics Compact open NMR systems for in situ measurement of moisture, salinity, and hydrocarbons
GB9022145D0 (en) * 1990-10-11 1990-11-21 Oxford Instr Ltd Magnetic field generating assembly

Also Published As

Publication number Publication date
US5488342A (en) 1996-01-30
EP0636250B1 (de) 1998-08-05
JPH07505959A (ja) 1995-06-29
DE69412192T2 (de) 1998-12-10
GB9302837D0 (en) 1993-03-31
WO1994018577A1 (en) 1994-08-18
EP0636250A1 (de) 1995-02-01

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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: BAKER HUGHES INCORPORATED (N.D.GES.D. STAATES DELA

8339 Ceased/non-payment of the annual fee