FR2856791A1 - Procede et dispositif d'imagerie magneto-optique - Google Patents

Procede et dispositif d'imagerie magneto-optique

Info

Publication number
FR2856791A1
FR2856791A1 FR0307850A FR0307850A FR2856791A1 FR 2856791 A1 FR2856791 A1 FR 2856791A1 FR 0307850 A FR0307850 A FR 0307850A FR 0307850 A FR0307850 A FR 0307850A FR 2856791 A1 FR2856791 A1 FR 2856791A1
Authority
FR
France
Prior art keywords
magneto
magnetic field
optical imaging
active material
target material
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.)
Granted
Application number
FR0307850A
Other languages
English (en)
Other versions
FR2856791B1 (fr
Inventor
Jean Marc Claude Eugen Decitre
Michel Bernard Lemistre
Youssef Jamal Julien Ben
Francois Lepoutre
Dominique Marc Bruno Placko
Pierre Yves Joubert
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.)
Centre National de la Recherche Scientifique CNRS
Ecole Normale Superieure de Cachan
Original Assignee
Centre National de la Recherche Scientifique CNRS
Ecole Normale Superieure de Cachan
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 Centre National de la Recherche Scientifique CNRS, Ecole Normale Superieure de Cachan filed Critical Centre National de la Recherche Scientifique CNRS
Priority to FR0307850A priority Critical patent/FR2856791B1/fr
Priority to EP04767451A priority patent/EP1639359A1/fr
Priority to CA2530197A priority patent/CA2530197C/fr
Priority to US10/562,560 priority patent/US7271900B2/en
Priority to PCT/FR2004/001602 priority patent/WO2005001467A1/fr
Publication of FR2856791A1 publication Critical patent/FR2856791A1/fr
Application granted granted Critical
Publication of FR2856791B1 publication Critical patent/FR2856791B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/21—Polarisation-affecting properties
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/032—Measuring direction or magnitude of magnetic fields or magnetic flux using magneto-optic devices, e.g. Faraday or Cotton-Mouton effect
    • G01R33/0322—Measuring direction or magnitude of magnetic fields or magnetic flux using magneto-optic devices, e.g. Faraday or Cotton-Mouton effect using the Faraday or Voigt effect

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Power Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Measuring Magnetic Variables (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

Procédé et dispositif d'imagerie magnéto-optique quantitative, pour former une image d'un matériau cible (2).Un matériau actif (15) est utilisé pour engendrer une rotation Faraday dans un faisceau lumineux polarisé. Ce matériau est placé à proximité du matériau cible (2) à imager. La rotation Faraday de ce matériau actif (15) est sensiblement proportionnelle à l'aimantation magnétique lorsqu'il est soumis à un champ magnétique d'excitation. Des moyens photo-détecteurs (7), détectent le faisceau réfléchi après traversée du matériau actif. En analysant la lumière du faisceau réfléchi, on en déduit l'amplitude et la phase d'un champ magnétique de perturbation créé par un défaut dans le matériau cible (2), soumis au champ magnétique d'excitation.
FR0307850A 2003-06-27 2003-06-27 Procede et dispositif d'imagerie magneto-optique Expired - Lifetime FR2856791B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR0307850A FR2856791B1 (fr) 2003-06-27 2003-06-27 Procede et dispositif d'imagerie magneto-optique
EP04767451A EP1639359A1 (fr) 2003-06-27 2004-06-24 Procede et dispositif d imagerie magneto-optique
CA2530197A CA2530197C (fr) 2003-06-27 2004-06-24 Procede et dispositif d'imagerie magneto-optique
US10/562,560 US7271900B2 (en) 2003-06-27 2004-06-24 Magneto-optical imaging method and device
PCT/FR2004/001602 WO2005001467A1 (fr) 2003-06-27 2004-06-24 Procede et dispositif d'imagerie magneto-optique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0307850A FR2856791B1 (fr) 2003-06-27 2003-06-27 Procede et dispositif d'imagerie magneto-optique

Publications (2)

Publication Number Publication Date
FR2856791A1 true FR2856791A1 (fr) 2004-12-31
FR2856791B1 FR2856791B1 (fr) 2005-11-04

Family

ID=33515498

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0307850A Expired - Lifetime FR2856791B1 (fr) 2003-06-27 2003-06-27 Procede et dispositif d'imagerie magneto-optique

Country Status (5)

Country Link
US (1) US7271900B2 (fr)
EP (1) EP1639359A1 (fr)
CA (1) CA2530197C (fr)
FR (1) FR2856791B1 (fr)
WO (1) WO2005001467A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2901025A1 (fr) * 2006-05-12 2007-11-16 Centre Nat Rech Scient Procede et dispositif d'imagerie a courant de foucault pour la detection et la caracterisation de defauts enfouis dans des structures complexes.

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8659291B2 (en) * 2008-12-31 2014-02-25 Infinitum Solutions, Inc. Magneto-optical detection of a field produced by a sub-resolution magnetic structure
US8289818B2 (en) 2008-12-31 2012-10-16 Infinitum Solutions, Inc. Magneto-optic write-head characterization using the recording medium as a transducer layer
FR2955666B1 (fr) * 2010-01-26 2012-04-13 Centre Nat Rech Scient Procede d'estimation de defauts dans un objet et dispositif de mise en oeuvre
US8427929B2 (en) 2010-09-08 2013-04-23 Infinitum Solutions, Inc. Sub-optical-resolution kerr signal detection for perpendicular write-head characterization
KR101442055B1 (ko) * 2010-10-12 2014-09-18 인디안 인스티튜트 오브 테크놀로지 칸푸르 샘플의 특징을 이미징하고 샘플 내 손상 영역을 식별하기 위한 시스템 및 방법
JP6037386B2 (ja) * 2013-02-13 2016-12-07 株式会社日立製作所 検査装置および検査方法
JP6484051B2 (ja) * 2015-02-10 2019-03-13 浜松ホトニクス株式会社 検査方法及び検査装置
JP6632327B2 (ja) 2015-10-30 2020-01-22 浜松ホトニクス株式会社 画像生成方法、画像生成装置、画像生成プログラム及び記録媒体
EP3290997B1 (fr) * 2016-09-02 2020-07-01 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. Modulateur de lumiere magneto-optique
US20240027546A1 (en) * 2022-07-20 2024-01-25 General Electric Company Magneto-Optic Defect Visualization System

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4625167A (en) * 1983-07-05 1986-11-25 Sigma Research, Inc. Flaw imaging in ferrous and nonferrous materials using magneto-optic visualization
US4755752A (en) * 1983-07-05 1988-07-05 Gerald L. Fitzpatrick Flaw imaging in ferrous and nonferrous materials using magneto-optic visualization
JPH01209356A (ja) * 1988-02-18 1989-08-23 Maakutetsuku Kk 長尺鋼材の磁気探傷装置
EP0351171A2 (fr) * 1988-07-09 1990-01-17 Ngk Insulators, Ltd. Méthode et appareil pour la mesure optique de quantités électriques et magnétiques
US4896103A (en) * 1985-06-29 1990-01-23 Kabushiki Kaisha Toshiba Current measuring magnetic field sensor having magnetooptic element with its easy axis of magnetization at right angles to the magnetic field generated by the current
US5053704A (en) * 1990-01-11 1991-10-01 Pri Instrumentation, Inc. Flow imager for conductive materials
DE4021359A1 (de) * 1990-07-05 1992-01-09 Siemens Ag Verfahren zur detektion von in einem koerper verdeckt verlaufenden strompfaden sowie vorrichtung zur durchfuehrung dieses verfahrens
EP0510621A2 (fr) * 1991-04-25 1992-10-28 Matsushita Electric Industrial Co., Ltd. Elément magnéto-optique et dispositif de mesure des champs magnétiques
US5446378A (en) * 1993-12-15 1995-08-29 Grumman Aerospace Corporation Magneto-optic eddy current imaging apparatus and method including dithering the image relative to the sensor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4410277A (en) * 1978-11-01 1983-10-18 Hitachi, Ltd. Apparatus for detecting magneto-optical anisotropy

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4625167A (en) * 1983-07-05 1986-11-25 Sigma Research, Inc. Flaw imaging in ferrous and nonferrous materials using magneto-optic visualization
US4755752A (en) * 1983-07-05 1988-07-05 Gerald L. Fitzpatrick Flaw imaging in ferrous and nonferrous materials using magneto-optic visualization
US4896103A (en) * 1985-06-29 1990-01-23 Kabushiki Kaisha Toshiba Current measuring magnetic field sensor having magnetooptic element with its easy axis of magnetization at right angles to the magnetic field generated by the current
JPH01209356A (ja) * 1988-02-18 1989-08-23 Maakutetsuku Kk 長尺鋼材の磁気探傷装置
EP0351171A2 (fr) * 1988-07-09 1990-01-17 Ngk Insulators, Ltd. Méthode et appareil pour la mesure optique de quantités électriques et magnétiques
US5053704A (en) * 1990-01-11 1991-10-01 Pri Instrumentation, Inc. Flow imager for conductive materials
DE4021359A1 (de) * 1990-07-05 1992-01-09 Siemens Ag Verfahren zur detektion von in einem koerper verdeckt verlaufenden strompfaden sowie vorrichtung zur durchfuehrung dieses verfahrens
EP0510621A2 (fr) * 1991-04-25 1992-10-28 Matsushita Electric Industrial Co., Ltd. Elément magnéto-optique et dispositif de mesure des champs magnétiques
US5446378A (en) * 1993-12-15 1995-08-29 Grumman Aerospace Corporation Magneto-optic eddy current imaging apparatus and method including dithering the image relative to the sensor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 0135, no. 17 (P - 962) 20 November 1989 (1989-11-20) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2901025A1 (fr) * 2006-05-12 2007-11-16 Centre Nat Rech Scient Procede et dispositif d'imagerie a courant de foucault pour la detection et la caracterisation de defauts enfouis dans des structures complexes.
WO2007135265A1 (fr) * 2006-05-12 2007-11-29 Centre National De La Recherche Scientifique (C.N.R.S) Procédé et dispositif d'imagerie à courant de foucault pour la détection et la caractérisation de défauts enfouis dans des structures complexes
US8159216B2 (en) 2006-05-12 2012-04-17 Centre National De La Recherche Scientifique (C.N.R.S.) Method and device for eddy current imaging for the detection and the characterisation of defects hidden in complex structures

Also Published As

Publication number Publication date
US20060146328A1 (en) 2006-07-06
WO2005001467A1 (fr) 2005-01-06
WO2005001467A8 (fr) 2005-05-06
US7271900B2 (en) 2007-09-18
CA2530197A1 (fr) 2005-01-16
EP1639359A1 (fr) 2006-03-29
FR2856791B1 (fr) 2005-11-04
CA2530197C (fr) 2014-04-22

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