FR2493991B1 - - Google Patents

Info

Publication number
FR2493991B1
FR2493991B1 FR8024016A FR8024016A FR2493991B1 FR 2493991 B1 FR2493991 B1 FR 2493991B1 FR 8024016 A FR8024016 A FR 8024016A FR 8024016 A FR8024016 A FR 8024016A FR 2493991 B1 FR2493991 B1 FR 2493991B1
Authority
FR
France
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
Application number
FR8024016A
Other languages
French (fr)
Other versions
FR2493991A1 (fr
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.)
Metallurgique de Revigny
Original Assignee
Metallurgique de Revigny
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 Metallurgique de Revigny filed Critical Metallurgique de Revigny
Priority to FR8024016A priority Critical patent/FR2493991A1/fr
Priority to FR8103726A priority patent/FR2500632B2/fr
Priority to DE8181401780T priority patent/DE3175426D1/de
Priority to EP19810401780 priority patent/EP0052058B1/fr
Publication of FR2493991A1 publication Critical patent/FR2493991A1/fr
Application granted granted Critical
Publication of FR2493991B1 publication Critical patent/FR2493991B1/fr
Granted 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
    • G01N27/9046—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 by analysing electrical signals

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)
FR8024016A 1980-11-12 1980-11-12 Procede et dispositif de detection par courants de foucault de defauts dans un produit metallique Granted FR2493991A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR8024016A FR2493991A1 (fr) 1980-11-12 1980-11-12 Procede et dispositif de detection par courants de foucault de defauts dans un produit metallique
FR8103726A FR2500632B2 (fr) 1980-11-12 1981-02-25 Dispositif de detection par courants de foucault de defauts dans un produit metallique
DE8181401780T DE3175426D1 (en) 1980-11-12 1981-11-10 Device for the detection of faults in a metallic product by means of eddy currents
EP19810401780 EP0052058B1 (fr) 1980-11-12 1981-11-10 Dispositif de détection par courants de Foucault de défauts dans un produit métallique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8024016A FR2493991A1 (fr) 1980-11-12 1980-11-12 Procede et dispositif de detection par courants de foucault de defauts dans un produit metallique

Publications (2)

Publication Number Publication Date
FR2493991A1 FR2493991A1 (fr) 1982-05-14
FR2493991B1 true FR2493991B1 (enExample) 1984-06-15

Family

ID=9247879

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8024016A Granted FR2493991A1 (fr) 1980-11-12 1980-11-12 Procede et dispositif de detection par courants de foucault de defauts dans un produit metallique

Country Status (1)

Country Link
FR (1) FR2493991A1 (enExample)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1308785A (fr) * 1961-10-13 1962-11-09 Gkn Group Services Ltd Perfectionnements apportés aux procédés et appareils pour déceler la présence de défauts dans des solides cohérents électriquement conducteurs
GB1200146A (en) * 1967-08-17 1970-07-29 Friedrich M O Foerster Measuring magnetic fields
US3535625A (en) * 1968-04-22 1970-10-20 Garrett Corp Strain and flaw detector
US3916301A (en) * 1974-05-20 1975-10-28 Republic Steel Corp Magnetic flaw detection apparatus
US4191922A (en) * 1978-03-14 1980-03-04 Republic Steel Corporation Electromagnetic flaw detection system and method incorporating improved automatic coil error signal compensation
US4287474A (en) * 1979-02-12 1981-09-01 Fastritsky Viktor S Method and apparatus for non-destructive quality testing of spot welds

Also Published As

Publication number Publication date
FR2493991A1 (fr) 1982-05-14

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse