WO2018141543A3 - Electromagnetic method and device for detecting defects - Google Patents

Electromagnetic method and device for detecting defects Download PDF

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Publication number
WO2018141543A3
WO2018141543A3 PCT/EP2018/050991 EP2018050991W WO2018141543A3 WO 2018141543 A3 WO2018141543 A3 WO 2018141543A3 EP 2018050991 W EP2018050991 W EP 2018050991W WO 2018141543 A3 WO2018141543 A3 WO 2018141543A3
Authority
WO
WIPO (PCT)
Prior art keywords
layer
magnetic
wires
inspected
detecting defects
Prior art date
Application number
PCT/EP2018/050991
Other languages
French (fr)
Other versions
WO2018141543A2 (en
Inventor
Jean-Marc Decitre
Laura PUCCI
Edouard DEMALDENT
Denis PREMEL
Original Assignee
Commissariat A L'energie Atomique Et Aux Energies Alternatives
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 Commissariat A L'energie Atomique Et Aux Energies Alternatives filed Critical Commissariat A L'energie Atomique Et Aux Energies Alternatives
Priority to AU2018214693A priority Critical patent/AU2018214693B2/en
Priority to BR112019015872A priority patent/BR112019015872A2/en
Priority to EP18701292.7A priority patent/EP3577450A2/en
Publication of WO2018141543A2 publication Critical patent/WO2018141543A2/en
Publication of WO2018141543A3 publication Critical patent/WO2018141543A3/en

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
    • G01N27/9013—Arrangements for scanning
    • G01N27/902—Arrangements for scanning by moving the sensors

Abstract

Device for detecting defects in multilayer structures composed of layers of ferromagnetic bars or wires having different orientations. The device comprises first magnetic means suitable for generating, in the upper layer, a magnetic field following the orientation of the magnetic wires of the upper layer and as many magnetic means as there are lower layers located above the layer to be inspected, each magnetic means being assigned to a lower layer and being suitable for generating, in said lower layer, a magnetic field following the orientation of the magnetic wires of said assigned layer. The device comprises electromagnetic field emitting/receiving means arranged above the upper layer, and suitable for emitting an electromagnetic field in the layer to be inspected and for receiving, in response, signals representative of the state of the magnetic wires in the layer to be inspected.
PCT/EP2018/050991 2017-02-02 2018-01-16 Electromagnetic method and device for detecting defects WO2018141543A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2018214693A AU2018214693B2 (en) 2017-02-02 2018-01-16 Electromagnetic method and device for detecting defects
BR112019015872A BR112019015872A2 (en) 2017-02-02 2018-01-16 electromagnetic method and device for detecting defects
EP18701292.7A EP3577450A2 (en) 2017-02-02 2018-01-16 Electromagnetic method and device for detecting defects

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1750879 2017-02-02
FR1750879A FR3062481A1 (en) 2017-02-02 2017-02-02 ELECTROMAGNETIC DEVICE AND METHOD FOR DETECTING DEFECTS

Publications (2)

Publication Number Publication Date
WO2018141543A2 WO2018141543A2 (en) 2018-08-09
WO2018141543A3 true WO2018141543A3 (en) 2018-10-11

Family

ID=59296909

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/050991 WO2018141543A2 (en) 2017-02-02 2018-01-16 Electromagnetic method and device for detecting defects

Country Status (5)

Country Link
EP (1) EP3577450A2 (en)
AU (1) AU2018214693B2 (en)
BR (1) BR112019015872A2 (en)
FR (1) FR3062481A1 (en)
WO (1) WO2018141543A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113390955B (en) * 2021-07-08 2022-04-19 中国石油大学(华东) Visual monitoring and evaluation method for cracks of alternating current magnetic field

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3244972A (en) * 1964-03-25 1966-04-05 United States Steel Corp Test-coil positioning mechanism
JPS59217158A (en) * 1983-05-26 1984-12-07 Mitsubishi Electric Corp Defect detector
US5446382A (en) * 1993-06-23 1995-08-29 The Babcock & Wilcox Company Eddy current probe having one yoke within another yoke for increased inspection depth, sensitivity and discrimination
WO2006067524A1 (en) * 2004-12-23 2006-06-29 Esr Technology Limited Detecting failures in flexible multistrand steel structures
WO2014096817A1 (en) * 2012-12-19 2014-06-26 Maps Technology Limited Detecting failures in flexible multistrand steel structures

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2475314B8 (en) 2009-11-16 2013-09-25 Innospection Group Ltd Remote environment inspection apparatus and method
GB2475315B (en) 2009-11-16 2014-07-16 Innospection Group Ltd Inspection apparatus and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3244972A (en) * 1964-03-25 1966-04-05 United States Steel Corp Test-coil positioning mechanism
JPS59217158A (en) * 1983-05-26 1984-12-07 Mitsubishi Electric Corp Defect detector
US5446382A (en) * 1993-06-23 1995-08-29 The Babcock & Wilcox Company Eddy current probe having one yoke within another yoke for increased inspection depth, sensitivity and discrimination
WO2006067524A1 (en) * 2004-12-23 2006-06-29 Esr Technology Limited Detecting failures in flexible multistrand steel structures
WO2014096817A1 (en) * 2012-12-19 2014-06-26 Maps Technology Limited Detecting failures in flexible multistrand steel structures

Also Published As

Publication number Publication date
WO2018141543A2 (en) 2018-08-09
AU2018214693A1 (en) 2019-08-22
AU2018214693B2 (en) 2022-05-26
BR112019015872A2 (en) 2020-04-14
EP3577450A2 (en) 2019-12-11
FR3062481A1 (en) 2018-08-03

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