ES476342A1 - Perfeccionamientos en dispositivos para la deteccion por co-rrientes de foucault de los defectos de superficie de productos metalicos. - Google Patents

Perfeccionamientos en dispositivos para la deteccion por co-rrientes de foucault de los defectos de superficie de productos metalicos.

Info

Publication number
ES476342A1
ES476342A1 ES476342A ES476342A ES476342A1 ES 476342 A1 ES476342 A1 ES 476342A1 ES 476342 A ES476342 A ES 476342A ES 476342 A ES476342 A ES 476342A ES 476342 A1 ES476342 A1 ES 476342A1
Authority
ES
Spain
Prior art keywords
coils
flaws
metal products
assembly
axis
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
Application number
ES476342A
Other languages
English (en)
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
Publication of ES476342A1 publication Critical patent/ES476342A1/es
Expired 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)

Abstract

Perfeccionamientos en dispositivos para la detección por corriente de Foucault de los defectos de superficie de productos metálicos, de los cuales una cara por lo menos presente un eje de simetría, dispositivo que consta de bobinas electromagnéticas, en conexión magnética con la cara examinadas cuya impedancia compleja es analizada con una o más frecuencias de la corriente de la alimentación, caracterizados porque cada dispositivo se forma por una serie de bobinas dispuestas frente a la cara examinada del producto sobre líneas simétricas en relación con su eje *** ver imagen 01
ES476342A 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. Expired ES476342A1 (es)

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 (1)

Publication Number Publication Date
ES476342A1 true ES476342A1 (es) 1979-04-16

Family

ID=9199414

Family Applications (1)

Application Number Title Priority Date Filing Date
ES476342A Expired 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.

Country Status (7)

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

Families Citing this family (6)

* 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
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
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

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE301731B (es) * 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
IT7830945A0 (it) 1978-12-18
GB2011087A (en) 1979-07-04
LU80697A1 (fr) 1979-07-20
FR2412841A1 (fr) 1979-07-20
DE2855511A1 (de) 1979-06-28
IT1100737B (it) 1985-09-28
DE2855511C2 (es) 1989-07-13
GB2011087B (en) 1982-12-01
FR2412841B1 (es) 1981-10-02
BE872785A (fr) 1979-06-15

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19990405