ATE131951T1 - Optimaler entwurf von zweidimensionalen permanentmagneten - Google Patents

Optimaler entwurf von zweidimensionalen permanentmagneten

Info

Publication number
ATE131951T1
ATE131951T1 AT90916617T AT90916617T ATE131951T1 AT E131951 T1 ATE131951 T1 AT E131951T1 AT 90916617 T AT90916617 T AT 90916617T AT 90916617 T AT90916617 T AT 90916617T AT E131951 T1 ATE131951 T1 AT E131951T1
Authority
AT
Austria
Prior art keywords
cavity
sections
flux
base line
remanences
Prior art date
Application number
AT90916617T
Other languages
English (en)
Inventor
Manlio G Abele
Original Assignee
Univ New York
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 Univ New York filed Critical Univ New York
Application granted granted Critical
Publication of ATE131951T1 publication Critical patent/ATE131951T1/de

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
    • 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)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Hard Magnetic Materials (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Coils Or Transformers For Communication (AREA)
AT90916617T 1989-10-19 1990-10-18 Optimaler entwurf von zweidimensionalen permanentmagneten ATE131951T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/424,162 US5119057A (en) 1989-10-19 1989-10-19 Optimum design of two-dimensional permanent magnets

Publications (1)

Publication Number Publication Date
ATE131951T1 true ATE131951T1 (de) 1996-01-15

Family

ID=23681704

Family Applications (1)

Application Number Title Priority Date Filing Date
AT90916617T ATE131951T1 (de) 1989-10-19 1990-10-18 Optimaler entwurf von zweidimensionalen permanentmagneten

Country Status (8)

Country Link
US (1) US5119057A (de)
EP (1) EP0496817B1 (de)
JP (1) JP2804996B2 (de)
AT (1) ATE131951T1 (de)
CA (1) CA2067812A1 (de)
DE (1) DE69024365T2 (de)
ES (1) ES2084044T3 (de)
WO (1) WO1991006963A1 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1247385B (it) * 1990-07-16 1994-12-12 Esaote Biomedica Magneti permanenti generatori di campi magnetici omogenei, in particolare per magnetic resonance imaging (rappresentazione per risonanza magnetica), e relativo metodo di fabbricazione
US5162771A (en) * 1990-10-01 1992-11-10 New York University Highly efficient yoked permanent magnet
US5107239A (en) * 1991-05-30 1992-04-21 New York University Hybrid permanent magnets
US5285393A (en) * 1991-11-19 1994-02-08 New York University Method for determination of optimum fields of permanent magnet structures with linear magnetic characteristics
DE69332601D1 (de) * 1992-03-18 2003-02-06 Sumitomo Spec Metals Magnetfeld-generator zur bilddarstellung mittels kernresonanz
US5428333A (en) * 1993-01-22 1995-06-27 New York University Method and apparatus for compensation of field distortion in a magnetic structure
US5798680A (en) * 1994-04-15 1998-08-25 New York University Strapped open magnetic structure
US7199689B1 (en) * 2006-01-09 2007-04-03 Brk Wireless Company, Inc High field NMR permanent magnetic structure
RO122019B1 (ro) * 2006-06-30 2008-11-28 Ioan Grosu Jucărie cu dinamică controlată
US20090195248A1 (en) * 2008-02-01 2009-08-06 Wang Nmr Inc. Table-top magnetic resonance imaging apparatus with permanent magnet
IT1395836B1 (it) 2009-10-09 2012-10-26 Esaote Spa Metodo per la realizzazione di un magnete permanente in particolare per scanner mri ed un magnete permanente, in particolare per scanner mri realizzato con detto metodo
GB2529785B (en) * 2013-06-03 2018-02-14 Nanalysis Corp Magnet Assemblies
CN109856572B (zh) * 2019-04-24 2023-09-22 河北工业大学 一种一维及二维高低频磁特性测量系统
DE102022202399A1 (de) 2022-03-10 2023-09-14 Bruker Biospin Gmbh NMR Permanentmagnet in Halbach-Anordnung basierend auf Segmenten mit regulärer Polyedergeometrie sowie Herstellungsverfahren

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL287237A (de) * 1961-12-27
US3768054A (en) * 1972-04-03 1973-10-23 Gen Electric Low flux leakage magnet construction
US4538130A (en) * 1984-04-23 1985-08-27 Field Effects, Inc. Tunable segmented ring magnet and method of manufacture
NL8402250A (nl) * 1984-07-17 1986-02-17 Philips Nv Kernspin resonantie apparaat met een rechthoekig permanent magnetische magneet.
US4647887A (en) * 1984-12-24 1987-03-03 The United States Of America As Represented By The Secretary Of The Army Lightweight cladding for magnetic circuits
IT8921079A0 (it) * 1989-07-03 1989-07-03 Comec Srl Sistema per la fabbricazione di magneti permanenti senza giochi, generatori di campo magnetico uniforme e relativi magneti permanenti elementari o compositi.

Also Published As

Publication number Publication date
EP0496817A4 (en) 1993-03-31
ES2084044T3 (es) 1996-05-01
WO1991006963A1 (en) 1991-05-16
EP0496817B1 (de) 1995-12-20
JPH05501940A (ja) 1993-04-08
DE69024365D1 (de) 1996-02-01
EP0496817A1 (de) 1992-08-05
JP2804996B2 (ja) 1998-09-30
CA2067812A1 (en) 1991-04-20
US5119057A (en) 1992-06-02
DE69024365T2 (de) 1996-08-01

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Legal Events

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RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties