BRPI0416310A - processo de detecção de defeitos e sistema de detecção de defeitos de superfìcie - Google Patents

processo de detecção de defeitos e sistema de detecção de defeitos de superfìcie

Info

Publication number
BRPI0416310A
BRPI0416310A BRPI0416310-9A BRPI0416310A BRPI0416310A BR PI0416310 A BRPI0416310 A BR PI0416310A BR PI0416310 A BRPI0416310 A BR PI0416310A BR PI0416310 A BRPI0416310 A BR PI0416310A
Authority
BR
Brazil
Prior art keywords
defect detection
cell
eddy currents
detection system
surface defect
Prior art date
Application number
BRPI0416310-9A
Other languages
English (en)
Inventor
Philip Meilland
Jean-Michel Turon
Fabien Midroit
Original Assignee
Arcelor France
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 Arcelor France filed Critical Arcelor France
Publication of BRPI0416310A publication Critical patent/BRPI0416310A/pt

Links

Classifications

    • 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
    • G01N27/904—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 with two or more sensors
    • 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
    • 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
    • G01N27/9006—Details, e.g. in the structure or functioning of sensors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Continuous Casting (AREA)

Abstract

"PROCESSO DE DETECçãO DE DEFEITOS E SISTEMA DE DETECçãO DE DEFEITOS DE SUPERFìCIE". A presente invenção se refere a uma processo de detecção de defeitos de superfície de um produto metálico bruto de fundição contínua, tal como uma placa de aço (4), sendo realizado por meio de um sensor (10) de defeitos de superfície por correntes de Foucault, sensor esse que compreende uma matriz que possui pelo menos duas fileiras (22, 24) de pelo menos três células de medida (21) cada uma contíguas e podendo ser comandadas por uma unidade de pilotagem (12) com multiplexador, sendo que cada célula está apta a gerar correntes de Foucault na superfície da placa de seção retangular e, de modo alternativo, a detectar correntes de Foucault nessa mesma superfície, e a um processo que compreende uma etapa de comando de uma primeira célula emissora e de uma segunda célula receptora da mesma fileira separadas uma da outra por pelo menos uma célula inativa.
BRPI0416310-9A 2003-11-18 2004-10-29 processo de detecção de defeitos e sistema de detecção de defeitos de superfìcie BRPI0416310A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0313498A FR2862384B3 (fr) 2003-11-18 2003-11-18 Procede et systeme de detection de defauts de surface d'un demi-produit metallique brut de coulee continue
PCT/FR2004/002802 WO2005052569A1 (fr) 2003-11-18 2004-10-29 Procede et systeme de detection de defauts de surface d'un produit metallique brut de coulee continue.

Publications (1)

Publication Number Publication Date
BRPI0416310A true BRPI0416310A (pt) 2007-01-09

Family

ID=34508559

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0416310-9A BRPI0416310A (pt) 2003-11-18 2004-10-29 processo de detecção de defeitos e sistema de detecção de defeitos de superfìcie

Country Status (10)

Country Link
US (1) US7489129B2 (pt)
EP (1) EP1685396A1 (pt)
JP (1) JP4652336B2 (pt)
KR (1) KR101065472B1 (pt)
CN (1) CN100447565C (pt)
BR (1) BRPI0416310A (pt)
FR (1) FR2862384B3 (pt)
RU (1) RU2343473C2 (pt)
UA (1) UA80504C2 (pt)
WO (1) WO2005052569A1 (pt)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090091318A1 (en) * 2007-09-11 2009-04-09 Benoit Lepage Phased scan eddy current array probe and a phased scanning method which provide complete and continuous coverage of a test surface without mechanical scanning
FR2944354B1 (fr) * 2009-04-10 2011-06-24 Commissariat Energie Atomique Dispositif de controle non destructif d'une structure electriquement conductrice
CA2842888C (en) * 2012-06-21 2014-12-30 Eddyfi Ndt Inc. High resolution eddy current array probe
FR3008490B1 (fr) * 2013-07-10 2015-08-07 Snecma Dispositif pour l'inspection d'une surface d'une piece electriquement conductrice
KR102023739B1 (ko) 2019-04-17 2019-09-20 주식회사 엘지화학 와전류를 이용한 전지셀 내부의 균열 검사 방법 및 검사 장치
CN112824871B (zh) * 2019-11-20 2022-11-15 中国南方电网有限责任公司超高压输电公司贵阳局 基于瞬变电磁视电阻率成像技术的接地网缺陷诊断方法
JP2024514358A (ja) * 2021-04-22 2024-04-01 エヴィデント・カナダ・インコーポレイテッド 高温ｅｃａプローブ

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS618361Y2 (pt) * 1980-10-09 1986-03-14
US5047719A (en) * 1990-05-25 1991-09-10 The Failure Group, Inc. Flexible coil assembly for reflectance-mode nondestructive eddy-current examination
JP2700213B2 (ja) * 1990-11-24 1998-01-19 株式会社エース電研 パチンコ玉検知装置およびパチンコゲーム機
US5237271A (en) * 1991-05-06 1993-08-17 General Electric Company Apparatus and method for non-destructive testing using multi-frequency eddy currents
US5262722A (en) * 1992-04-03 1993-11-16 General Electric Company Apparatus for near surface nondestructive eddy current scanning of a conductive part using a multi-layer eddy current probe array
CA2076205C (en) * 1992-08-14 1999-04-20 Valentino S. Cecco Differential transmit-receive eddy current probe incorporating bracelets of multi-coil units
JP2833497B2 (ja) * 1994-12-07 1998-12-09 財団法人雑賀技術研究所 移動導電体検出用コイルとそれを用いた移動導電体検出装置
JPH08334498A (ja) * 1995-06-08 1996-12-17 Ishikawajima Harima Heavy Ind Co Ltd 全方位渦流探傷方法およびその装置
FR2758393B1 (fr) * 1997-01-10 1999-10-15 Commissariat Energie Atomique Sonde a courants de foucault
JPH1151905A (ja) * 1997-08-04 1999-02-26 Tokyo Gas Co Ltd 渦流探傷装置用探傷コイルアレイおよび該探傷コイルアレイを用いた渦流探傷方法
FR2782803B3 (fr) * 1998-08-31 2001-04-13 Minh Quang Le Capteur inductif multi-elements, pour le controle non destructif de pieces electriquement conductrices
JP2000235019A (ja) * 1999-02-12 2000-08-29 Genshiryoku Engineering:Kk 渦流探傷プローブ
US6344739B1 (en) * 1999-02-12 2002-02-05 R/D Tech Inc. Eddy current probe with multi-use coils and compact configuration
US6172499B1 (en) * 1999-10-29 2001-01-09 Ascension Technology Corporation Eddy current error-reduced AC magnetic position measurement system
JP2002022706A (ja) * 2000-07-12 2002-01-23 Uchihashi Estec Co Ltd 磁気センサ及び漏洩磁束探傷法並びに装置
CN1160567C (zh) * 2001-11-23 2004-08-04 清华大学 阵列式柔性电涡流传感器
JP4327745B2 (ja) * 2005-02-18 2009-09-09 株式会社日立製作所 渦電流探傷プローブ及び渦電流探傷装置

Also Published As

Publication number Publication date
US20070285088A1 (en) 2007-12-13
WO2005052569A1 (fr) 2005-06-09
EP1685396A1 (fr) 2006-08-02
JP4652336B2 (ja) 2011-03-16
RU2006121448A (ru) 2007-12-27
US7489129B2 (en) 2009-02-10
CN100447565C (zh) 2008-12-31
FR2862384A3 (fr) 2005-05-20
RU2343473C2 (ru) 2009-01-10
UA80504C2 (en) 2007-09-25
KR20060123349A (ko) 2006-12-01
FR2862384B3 (fr) 2005-11-04
CN1894579A (zh) 2007-01-10
JP2007513330A (ja) 2007-05-24
KR101065472B1 (ko) 2011-09-16

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 9A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2260 DE 29/04/2014.