ES2110505T3 - Iman permanente con armadura, de alto rendimiento. - Google Patents

Iman permanente con armadura, de alto rendimiento.

Info

Publication number
ES2110505T3
ES2110505T3 ES92914065T ES92914065T ES2110505T3 ES 2110505 T3 ES2110505 T3 ES 2110505T3 ES 92914065 T ES92914065 T ES 92914065T ES 92914065 T ES92914065 T ES 92914065T ES 2110505 T3 ES2110505 T3 ES 2110505T3
Authority
ES
Spain
Prior art keywords
magnetized
cavity
abutting
armor
permanent magnet
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
ES92914065T
Other languages
English (en)
Inventor
Manlio G Abele
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.)
New York University NYU
Original Assignee
New York University NYU
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 New York University NYU filed Critical New York University NYU
Application granted granted Critical
Publication of ES2110505T3 publication Critical patent/ES2110505T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01F7/02—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)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Particle Accelerators (AREA)

Abstract

UNA ESTRUCTURA MAGNETICA ACOPLADA TIENE UN PAR DE MIEMBROS MAGNETIZADOS SEPARADOS QUE DEFINEN UNA CAVIDAD, Y UNA ESTRUCTURA FERROMAGNETICA TERMINAL QUE CIERRA DICHA CAVIDAD Y SOBRESALE UN EXTREMO CON RESPECTO A LOS MIEMBROS MAGNETIZADOS. LA ESTRUCTURA TERMINAL COMPRENDE AL MENOS UN PRIMER ELEMENTO (91) DE SECCION CRUZADA TRIANGULAR QUE TIENE UN LADO QUE SOBRESALE POR UN EXTREMO DE UNO DE DICHOS MIEMBROS MAGNETIZADOS Y UN SEGUNDO ELEMENTO (100) DE SECCION CRUZADA TRIANGULAR QUE TIENE UNA CARA QUE SOBRESALE A LA CARA ADYACENTE DE DICHA CAVIDAD. LOS PRIMERO Y SEGUNDO ELEMENTOS TIENEN SEGUNDAS CARAS MAS ALLA DE LOS MIEMBROS MAGNETIZADOS Y CAVIDAD QUE DEFINE AL MENOS PARTE DE UNA LINEA EQUIPOTENCIAL POR LO QUE LA DENSIDAD DEL FLUJO SOBRE LA CARA DE LA LINEA EQUIPOTENCIAL QUE SE ALEJA DE LA ESTRUCTURA MAGNETIZADA ES CERO. UNA REGION DE MATERIAL CON (MU) = INFINITO, ESTA PROVISTA ADYACENTE AL MIEMBRO MAGNETIZADO PARA MINIMIZAR EL EFECTO DE LAS PERTURBACIONES.
ES92914065T 1991-05-30 1992-04-06 Iman permanente con armadura, de alto rendimiento. Expired - Lifetime ES2110505T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/707,620 US5162771A (en) 1990-10-01 1991-05-30 Highly efficient yoked permanent magnet

Publications (1)

Publication Number Publication Date
ES2110505T3 true ES2110505T3 (es) 1998-02-16

Family

ID=24842427

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92914065T Expired - Lifetime ES2110505T3 (es) 1991-05-30 1992-04-06 Iman permanente con armadura, de alto rendimiento.

Country Status (9)

Country Link
US (1) US5162771A (es)
EP (1) EP0586602B1 (es)
JP (1) JP3019266B2 (es)
AT (1) ATE162003T1 (es)
AU (1) AU2245792A (es)
CA (1) CA2110288A1 (es)
DE (1) DE69223959T2 (es)
ES (1) ES2110505T3 (es)
WO (1) WO1992022076A1 (es)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5370685A (en) * 1991-07-16 1994-12-06 Stanford Surgical Technologies, Inc. Endovascular aortic valve replacement
JPH05211104A (ja) * 1991-12-05 1993-08-20 Hitachi Medical Corp 磁気共鳴イメージング装置用静磁場発生装置
EP0591542B1 (en) * 1992-03-18 2003-01-02 Sumitomo Special Metals Company Limited Magnetic field generator for mri
US5382936A (en) * 1992-06-02 1995-01-17 The United States Of America As Represented By The Secretary Of The Army Field augmented permanent magnet structures
US5278534A (en) * 1992-09-01 1994-01-11 New York University Magnetic structure having a mirror
US5428333A (en) * 1993-01-22 1995-06-27 New York University Method and apparatus for compensation of field distortion in a magnetic structure
JP3150248B2 (ja) * 1993-12-27 2001-03-26 住友特殊金属株式会社 Ｍｒｉ用磁界発生装置
US5798680A (en) * 1994-04-15 1998-08-25 New York University Strapped open magnetic structure
US5475355A (en) * 1994-04-15 1995-12-12 New York University Method and apparatus for compensation of field distortion in a magnetic structure using spatial filter
US5635889A (en) * 1995-09-21 1997-06-03 Permag Corporation Dipole permanent magnet structure
US5886609A (en) * 1997-10-22 1999-03-23 Dexter Magnetic Technologies, Inc. Single dipole permanent magnet structure with linear gradient magnetic field intensity
US7038565B1 (en) 2003-06-09 2006-05-02 Astronautics Corporation Of America Rotating dipole permanent magnet assembly
US6946941B2 (en) * 2003-08-29 2005-09-20 Astronautics Corporation Of America Permanent magnet assembly
US7148777B2 (en) * 2004-02-03 2006-12-12 Astronautics Corporation Of America Permanent magnet assembly
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

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3227931A (en) * 1963-07-18 1966-01-04 Zenith Radio Corp Permanent-magnet uniform-field-producing apparatus
NL8402250A (nl) * 1984-07-17 1986-02-17 Philips Nv Kernspin resonantie apparaat met een rechthoekig permanent magnetische magneet.
US5119057A (en) * 1989-10-19 1992-06-02 New York University Optimum design of two-dimensional permanent magnets
US4998083A (en) * 1989-11-02 1991-03-05 New York University Yokeless permanent magnet structure and method of construction

Also Published As

Publication number Publication date
EP0586602A1 (en) 1994-03-16
DE69223959T2 (de) 1998-07-16
WO1992022076A1 (en) 1992-12-10
DE69223959D1 (de) 1998-02-12
CA2110288A1 (en) 1992-12-10
EP0586602B1 (en) 1998-01-07
ATE162003T1 (de) 1998-01-15
JPH06508478A (ja) 1994-09-22
JP3019266B2 (ja) 2000-03-13
AU2245792A (en) 1993-01-08
US5162771A (en) 1992-11-10
EP0586602A4 (en) 1994-06-08

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