DE3581530D1 - Verfahren und vorrichtung zur wirbelstrom feststellung von fehlern. - Google Patents

Verfahren und vorrichtung zur wirbelstrom feststellung von fehlern.

Info

Publication number
DE3581530D1
DE3581530D1 DE8585903576T DE3581530T DE3581530D1 DE 3581530 D1 DE3581530 D1 DE 3581530D1 DE 8585903576 T DE8585903576 T DE 8585903576T DE 3581530 T DE3581530 T DE 3581530T DE 3581530 D1 DE3581530 D1 DE 3581530D1
Authority
DE
Germany
Prior art keywords
determining errors
errors
determining
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 - Fee Related
Application number
DE8585903576T
Other languages
English (en)
Inventor
M Harris
F Abramczyk
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.)
Ltv Steel Co Inc
Original Assignee
Ltv Steel Co Inc
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 Ltv Steel Co Inc filed Critical Ltv Steel Co Inc
Application granted granted Critical
Publication of DE3581530D1 publication Critical patent/DE3581530D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G01N27/9026—Arrangements for scanning by moving the material
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (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)
DE8585903576T 1984-06-27 1985-06-26 Verfahren und vorrichtung zur wirbelstrom feststellung von fehlern. Expired - Fee Related DE3581530D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/625,033 US4683430A (en) 1984-06-27 1984-06-27 Eddy current flaw detector method and apparatus having a rotatable high permeability flux concentrator encircling a workpiece
PCT/US1985/001240 WO1986000411A1 (en) 1984-06-27 1985-06-26 Eddy current flaw detector method and apparatus

Publications (1)

Publication Number Publication Date
DE3581530D1 true DE3581530D1 (de) 1991-02-28

Family

ID=24504305

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585903576T Expired - Fee Related DE3581530D1 (de) 1984-06-27 1985-06-26 Verfahren und vorrichtung zur wirbelstrom feststellung von fehlern.

Country Status (6)

Country Link
US (1) US4683430A (de)
EP (1) EP0190200B1 (de)
JP (1) JPS61502563A (de)
CA (1) CA1240379A (de)
DE (1) DE3581530D1 (de)
WO (1) WO1986000411A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8920957D0 (en) * 1989-09-15 1989-11-01 Hitech Metal Detectors Ltd Metal detecting apparatus and apparatus for testing metal detecting apparatus
FR2679336A1 (fr) * 1991-07-18 1993-01-22 Siderurgie Fse Inst Rech Appareil de controle non destructif par courants de foucault de produits metalliques longs en defilement.
US5926020A (en) * 1994-11-16 1999-07-20 Samson; Rock Eddy current hybrid probe with movable magnetic field altering member
US6894492B1 (en) 2001-12-07 2005-05-17 General Electric Company Self-aligning probe and its use
US20060164091A1 (en) * 2005-01-26 2006-07-27 Battelle Memorial Institute Rotating magnet-induced current pipeline inspection tool and method
JP5113665B2 (ja) * 2008-08-05 2013-01-09 一般財団法人電力中央研究所 渦電流探傷センサー用治具並びに渦電流探傷センサー

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2104646A (en) * 1935-06-20 1938-01-04 Pittsburgh Dry Stencil Company Means for testing
US2863546A (en) * 1956-03-19 1958-12-09 Best Foods Inc Magnetic flux monitoring apparatus
US3110860A (en) * 1961-11-06 1963-11-12 Budd Co Electromagnetic testing apparatus using an eccentrically mounted annular test coil whose axis is rotated about the workpiece axis
US3152302A (en) * 1962-05-16 1964-10-06 Budd Co Electromagnetic testing apparatus having a rotating apertured cylinder for spirally scanning cylindrical workpieces
SU565248A1 (ru) * 1974-02-26 1977-07-15 Предприятие П/Я Р-6303 Модул ционный вихретоковый преобразователь
US3916301A (en) * 1974-05-20 1975-10-28 Republic Steel Corp Magnetic flaw detection apparatus
US4002967A (en) * 1975-08-01 1977-01-11 Aluminum Company Of America Annular eddy current test coil with magnetic laminations adjacent a limited circumferential extent
FR2339231A1 (fr) * 1976-01-22 1977-08-19 Commissariat Energie Atomique Dispositif d'entrainement pneumatique pour sonde de mesure a courants de foucault
US4203069A (en) * 1977-12-29 1980-05-13 Electric Power Research Institute, Inc. Method and apparatus for non-destructively testing electrically conductive elongate cylindrical components using an eddy current producing coil with a rotor to concentrate the magnetic field in a selected area
US4355281A (en) * 1978-06-14 1982-10-19 Republic Steel Corporation Eddy current surface flaw detection employing signal correlation

Also Published As

Publication number Publication date
WO1986000411A1 (en) 1986-01-16
US4683430A (en) 1987-07-28
CA1240379A (en) 1988-08-09
EP0190200A4 (de) 1987-01-20
EP0190200B1 (de) 1991-01-23
JPS61502563A (ja) 1986-11-06
EP0190200A1 (de) 1986-08-13

Similar Documents

Publication Publication Date Title
DE3687220D1 (de) Verfahren und vorrichtung zur detektion von musterfehlern.
DE3586650D1 (de) Verfahren und vorrichtung zur farbmessung.
DE3854546D1 (de) Verfahren und Gerät zur Programmablaufmessung.
DE3584117D1 (de) Verfahren zur ultraschallmessung und dazugehoeriges geraet.
DE3585204D1 (de) Verfahren und vorrichtung zur entdeckung eines objekts.
DE3687760D1 (de) Vorrichtung und verfahren zur koordinatenmessung.
DE3483911D1 (de) Verfahren und vorrichtung zur detektion von bewegbaren objekten.
DE3689619D1 (de) Verfahren und vorrichtung zur bestimmung der konzentration von asphalten.
DE3877516D1 (de) Geraet und verfahren zur bohrlochmessung.
DE3582061D1 (de) Verfahren und vorrichtung zur ueberwachung von redoxreaktionen.
DE3575782D1 (de) Verfahren und vorrichtung zur pegelmessung mit mikrowellen.
DE3587535D1 (de) Verfahren und vorrichtung zur numerischen datenkodierung.
DE3872932D1 (de) Geraet und verfahren zur detektion oberflaechenfehler.
AT387029B (de) Verfahren und vorrichtung zur plasmapyrolyse von muell
DE3781654D1 (de) Verfahren und vorrichtung zur ketonmessung.
DE3673226D1 (de) Verfahren und vorrichtung zur untersuchung von oberflaechen.
DE3851587D1 (de) Verfahren und Apparatur zur Widerstandsmessung.
DE3863895D1 (de) Verfahren und vorrichtung zur erzielung von seismischen messwerten.
DE3582006D1 (de) Verfahren und vorrichtung zur materialbeschichtung.
DE3854527D1 (de) Vorrichtung und verfahren zur beschichtung von fixierungselementen.
DE68919256D1 (de) Verfahren und Vorrichtung zur Ermittlung von Zelleigenschaften.
DE3280123D1 (de) Geraet und verfahren zur mustererkennung.
DE3382706D1 (de) Verfahren und vorrichtung zur relativwegmessung.
DE3869325D1 (de) Verfahren und vorrichtung zur pruefung von lichtwellenleiter-knotenpunkten.
DE3583533D1 (de) Verfahren und vorrichtung zur stellungs-/geschwindigkeitsermittlung.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee