FR2412841B1 - - Google Patents

Info

Publication number
FR2412841B1
FR2412841B1 FR7739415A FR7739415A FR2412841B1 FR 2412841 B1 FR2412841 B1 FR 2412841B1 FR 7739415 A FR7739415 A FR 7739415A FR 7739415 A FR7739415 A FR 7739415A FR 2412841 B1 FR2412841 B1 FR 2412841B1
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
FR7739415A
Other languages
French (fr)
Other versions
FR2412841A1 (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.)
Institut de Recherches de la Siderurgie Francaise IRSID
Original Assignee
Institut de Recherches de la Siderurgie Francaise IRSID
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 Institut de Recherches de la Siderurgie Francaise IRSID filed Critical Institut de Recherches de la Siderurgie Francaise IRSID
Priority to FR7739415A priority Critical patent/FR2412841A1/fr
Priority to GB7848395A priority patent/GB2011087B/en
Priority to BE1009196A priority patent/BE872785A/xx
Priority to IT30945/78A priority patent/IT1100737B/it
Priority to LU80697A priority patent/LU80697A1/xx
Priority to DE19782855511 priority patent/DE2855511A1/de
Priority to ES476342A priority patent/ES476342A1/es
Publication of FR2412841A1 publication Critical patent/FR2412841A1/fr
Application granted granted Critical
Publication of FR2412841B1 publication Critical patent/FR2412841B1/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)
FR7739415A 1977-12-26 1977-12-26 Dispositif electromagnetique d'inspection par courants de foucault Granted FR2412841A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR7739415A FR2412841A1 (fr) 1977-12-26 1977-12-26 Dispositif electromagnetique d'inspection par courants de foucault
GB7848395A GB2011087B (en) 1977-12-26 1978-12-13 Electromagnetic inspection device employing foucault currents
BE1009196A BE872785A (fr) 1977-12-26 1978-12-15 Dispositif electromagnetique d'inspection par courants de foucault
IT30945/78A IT1100737B (it) 1977-12-26 1978-12-18 Dispositivo elettromagnetico di ispezione con correnti di foucault
LU80697A LU80697A1 (fr) 1977-12-26 1978-12-22 Dispositif electromagnetique d'inspection par courants de foucault
DE19782855511 DE2855511A1 (de) 1977-12-26 1978-12-22 Wirbelstrom-pruefvorrichtung
ES476342A ES476342A1 (es) 1977-12-26 1978-12-26 Perfeccionamientos en dispositivos para la deteccion por co-rrientes de foucault de los defectos de superficie de productos metalicos.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7739415A FR2412841A1 (fr) 1977-12-26 1977-12-26 Dispositif electromagnetique d'inspection par courants de foucault

Publications (2)

Publication Number Publication Date
FR2412841A1 FR2412841A1 (fr) 1979-07-20
FR2412841B1 true FR2412841B1 (enrdf_load_stackoverflow) 1981-10-02

Family

ID=9199414

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7739415A Granted FR2412841A1 (fr) 1977-12-26 1977-12-26 Dispositif electromagnetique d'inspection par courants de foucault

Country Status (7)

Country Link
BE (1) BE872785A (enrdf_load_stackoverflow)
DE (1) DE2855511A1 (enrdf_load_stackoverflow)
ES (1) ES476342A1 (enrdf_load_stackoverflow)
FR (1) FR2412841A1 (enrdf_load_stackoverflow)
GB (1) GB2011087B (enrdf_load_stackoverflow)
IT (1) IT1100737B (enrdf_load_stackoverflow)
LU (1) LU80697A1 (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2459476A1 (fr) * 1979-06-14 1981-01-09 Siderurgie Fse Inst Rech Procede et dispositif d'inspection de produits metalliques par courants de foucault
FR2515353A1 (fr) * 1981-10-27 1983-04-29 Siderurgie Fse Inst Rech Procede de detection de defauts d'un produit metallique par courants de foucault
US4644274A (en) * 1983-04-01 1987-02-17 General Electric Company Apparatus for supporting an eddy current probe used to scan an irregular surface
FR2562668B1 (fr) * 1984-04-05 1987-11-27 Sncf Dispositif de reperage de defauts de rails de chemin de fer par courants de foucault, capable de discriminer les defauts de certaines discontinuites de construction des rails
EP1848989A1 (fr) * 2005-02-04 2007-10-31 Commissariat A L'energie Atomique Procede realisation d'une tete de controle a courants de foucault de grande dynamique et de haute resolution spatiale
FR2881826A1 (fr) 2005-02-04 2006-08-11 Commissariat Energie Atomique Procede de conception et de realisation d'un dispositif de controle a courants de foucault
CN114897797B (zh) * 2022-04-24 2025-04-04 武汉海微科技股份有限公司 印刷电路板的缺陷检测方法、装置、设备及存储介质

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE301731B (enrdf_load_stackoverflow) * 1966-02-24 1968-06-17 Essem Metotest Ab
GB1209423A (en) * 1969-03-12 1970-10-21 Gkn Group Services Ltd Improvements relating to apparatus for the detection of flaws
JPS5177378A (en) * 1974-12-27 1976-07-05 Nippon Kokan Kk Denjudoshikikenshutsusochi
DE2530816C3 (de) * 1975-07-10 1980-07-31 Institut Dr. Friedrich Foerster Pruefgeraetebau, 7410 Reutlingen Wirbelstromprüfgerät zum Abtasten der Oberfläche eines Prüfteils

Also Published As

Publication number Publication date
GB2011087B (en) 1982-12-01
FR2412841A1 (fr) 1979-07-20
GB2011087A (en) 1979-07-04
IT7830945A0 (it) 1978-12-18
LU80697A1 (fr) 1979-07-20
DE2855511C2 (enrdf_load_stackoverflow) 1989-07-13
ES476342A1 (es) 1979-04-16
BE872785A (fr) 1979-06-15
DE2855511A1 (de) 1979-06-28
IT1100737B (it) 1985-09-28

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Legal Events

Date Code Title Description
ST Notification of lapse