ES2102062T3 - Caracterizacion de materiales magneticos. - Google Patents

Caracterizacion de materiales magneticos.

Info

Publication number
ES2102062T3
ES2102062T3 ES93922028T ES93922028T ES2102062T3 ES 2102062 T3 ES2102062 T3 ES 2102062T3 ES 93922028 T ES93922028 T ES 93922028T ES 93922028 T ES93922028 T ES 93922028T ES 2102062 T3 ES2102062 T3 ES 2102062T3
Authority
ES
Spain
Prior art keywords
pct
magnetic field
date
field strength
fields
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
ES93922028T
Other languages
English (en)
Inventor
John Dudding
Roland Zivilingenie Grossinger
Geraint Jewell
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.)
Hirst Magnetic Instruments Ltd
Original Assignee
Hirst Magnetic Instruments 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 Hirst Magnetic Instruments Ltd filed Critical Hirst Magnetic Instruments Ltd
Application granted granted Critical
Publication of ES2102062T3 publication Critical patent/ES2102062T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
    • G01R33/1215—Measuring magnetisation; Particular magnetometers therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Soft Magnetic Materials (AREA)
  • Magnetic Ceramics (AREA)
  • Measuring Magnetic Variables (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Magnetic Record Carriers (AREA)
  • Parts Printed On Printed Circuit Boards (AREA)
  • Plural Heterocyclic Compounds (AREA)

Abstract

LOS MATERIALES MAGNETICOS PERMANENTES DE ALTA ENERGIA SE CARACTERIZAN POR EXPONER EL MATERIAL A CAMPOS DE IMPULSOS SECUENCIALES DE RESPECTIVAMENTE DIFERENTES PORCENTAJES DE CAMBIO DE INTENSIDAD DE CAMPO MAGNETICO, SENSIBILIDAD A LA INTENSIDAD DE CAMPO MAGNETICO TOTAL, SENSIBILIDAD A LOS CAMPOS MAGNETICOS TOTALES GENERADOS EN LA MUESTRA (11) POR LOS IMPULSOS RESPECTIVOS QUE INCLUYEN CORRIENTES DE REMOLINO INDUCIDAS, Y ELIMINANDO LOS COMPONENTES DE LA CORRIENTE DE REMOLINO DE DICHOS CAMPOS, POR ELLO LOS CAMPOS MAGNETICOS DE RED SE REFIEREN A LAS CARACTERISTICAS MAGNETICAS DE LA MUESTRA (11). PREFERIBLEMENTE EL CAMPO DE IMPULSOS ES GENERADO POR UN CONDENSADOR MEDIANTE UN SOLENOIDE (12) Y EL PORCENTAJE DE CAMBIO DE LA INTENSIDAD DEL CAMPO MAGNETICO SE PRODUCE MANTENIENDO LA CONSTANTE FORMA DE ONDA Y ALTERANDO LA DURACION DEL IMPULSO, POR EJEMPLO PROPORCIONANDO DERIVACIONES (19) EN EL SOLENOIDE JUNTO CON UN INDUCTOR Y UNA RESISTENCIA DE COMPENSACION, PARA PERMITIR QUE EL PORCENTAJE DE RESISTENCIA A LA INDUCTANCIA SE MANTENGA SUSTANCIALMENTE CONSTANTE A TRAVES DEL RANGO DE DERIVACIONES UTILIZADAS.
ES93922028T 1992-10-07 1993-10-07 Caracterizacion de materiales magneticos. Expired - Lifetime ES2102062T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB929221108A GB9221108D0 (en) 1992-10-07 1992-10-07 Characterisation of magnetic materials

Publications (1)

Publication Number Publication Date
ES2102062T3 true ES2102062T3 (es) 1997-07-16

Family

ID=10723116

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93922028T Expired - Lifetime ES2102062T3 (es) 1992-10-07 1993-10-07 Caracterizacion de materiales magneticos.

Country Status (10)

Country Link
US (1) US5565774A (es)
EP (1) EP0672261B1 (es)
CN (1) CN1052542C (es)
AT (1) ATE149253T1 (es)
AU (1) AU5117693A (es)
DE (1) DE69308321T2 (es)
DK (1) DK0672261T3 (es)
ES (1) ES2102062T3 (es)
GB (1) GB9221108D0 (es)
WO (1) WO1994008249A1 (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19648758A1 (de) * 1996-11-25 1998-06-04 Magnet Motor Gmbh Dauermagnetisch erregte elektrische Maschine mit Rotorrückschluß
GB2324609B (en) * 1997-04-23 2001-06-27 Redcliffe Magtronics Ltd Means for determining the characteristic of a magnetic sample
US6452467B1 (en) 1999-04-01 2002-09-17 Mcewan Technologies, Llc Material level sensor having a wire-horn launcher
US6644114B1 (en) 1999-12-30 2003-11-11 Mcewan Technologies, Llc Direct PWM reflectometer
GB0709725D0 (en) * 2007-05-22 2007-06-27 Metis Instr & Equipment N V Technique and apparatus for discriminating magnetic material properties from induced currents in sweeping magnetic hysteresis meters
KR102472651B1 (ko) * 2015-05-11 2022-11-30 가부시키가이샤 에바라 세이사꾸쇼 전자석 장치, 전자석 제어 장치, 전자석 제어 방법 및 전자석 시스템
US11519710B2 (en) * 2020-02-26 2022-12-06 Honeywell Limited High accuracy and high stability magnetic displacement sensor in the presence of electromagnetic interferences
CN115427827A (zh) * 2020-04-09 2022-12-02 优诺医疗有限公司 在磁化时磁脉冲及方向的检测
WO2021204974A1 (en) * 2020-04-09 2021-10-14 Unomedical A/S Detection of magnetic pulse and orientation when magnetizing
GB202105993D0 (en) 2021-04-27 2021-06-09 Hirst Magnetic Instruments Ltd Method and apparatus for mapping the open circuit demagnetisation curve of a sample of magnetic material to a closed circuit demagnetisation curve

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU974314A1 (ru) * 1981-05-27 1982-11-15 Предприятие П/Я М-5174 Способ испытани образцов магнитотвердых материалов
GB2115557B (en) * 1981-07-28 1986-03-26 Inst Prikladnoi Fiziki Akademi Method and device for determination of mechanical properties of article made of ferromagnetic material
US4843316A (en) * 1986-06-27 1989-06-27 Hewlett-Packard Company Nondestructive M-H hysteresis testers for magnetic discs for computer disc drives
JPH01248077A (ja) * 1988-03-29 1989-10-03 Mitsubishi Metal Corp 磁性体の磁気特性測定方法及び磁気特性測定装置

Also Published As

Publication number Publication date
DK0672261T3 (da) 1997-09-01
WO1994008249A1 (en) 1994-04-14
DE69308321D1 (de) 1997-04-03
AU5117693A (en) 1994-04-26
GB9221108D0 (en) 1992-11-18
DE69308321T2 (de) 1997-09-11
US5565774A (en) 1996-10-15
CN1115383A (zh) 1996-01-24
CN1052542C (zh) 2000-05-17
ATE149253T1 (de) 1997-03-15
EP0672261B1 (en) 1997-02-26
EP0672261A1 (en) 1995-09-20

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