FR2406198A1 - Sonde a courant de foucault pour le controle de materiaux ferromagnetiques - Google Patents

Sonde a courant de foucault pour le controle de materiaux ferromagnetiques

Info

Publication number
FR2406198A1
FR2406198A1 FR7829444A FR7829444A FR2406198A1 FR 2406198 A1 FR2406198 A1 FR 2406198A1 FR 7829444 A FR7829444 A FR 7829444A FR 7829444 A FR7829444 A FR 7829444A FR 2406198 A1 FR2406198 A1 FR 2406198A1
Authority
FR
France
Prior art keywords
probe
eddy current
coils
bias magnet
workpiece surfaces
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.)
Pending
Application number
FR7829444A
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.)
Kraftwerk Union AG
Original Assignee
Kraftwerk Union AG
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 Kraftwerk Union AG filed Critical Kraftwerk Union AG
Publication of FR2406198A1 publication Critical patent/FR2406198A1/fr
Pending 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
    • G01N27/902—Arrangements for scanning by moving the sensors
    • 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
    • G01N27/9006—Details, e.g. in the structure or functioning of sensors

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

Sonde à courant de Foucault pour le contrôle de matériaux ferromagnétiques. La sonde se compose de deux bobines 3 et 4 placées l'une à côté de l'autre et parcourues par du courant alternatif à haute fréquence ainsi que d'un dispositif 7 pour la prémagnétisation des pièces ferromagnétiques perpendiculairement à leur surface 1.
FR7829444A 1977-10-17 1978-10-16 Sonde a courant de foucault pour le controle de materiaux ferromagnetiques Pending FR2406198A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772746568 DE2746568A1 (de) 1977-10-17 1977-10-17 Wirbelstrompruefsonde zur pruefung ferromagnetischer werkstoffe

Publications (1)

Publication Number Publication Date
FR2406198A1 true FR2406198A1 (fr) 1979-05-11

Family

ID=6021577

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7829444A Pending FR2406198A1 (fr) 1977-10-17 1978-10-16 Sonde a courant de foucault pour le controle de materiaux ferromagnetiques

Country Status (2)

Country Link
DE (1) DE2746568A1 (fr)
FR (1) FR2406198A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0008710A1 (fr) * 1978-08-28 1980-03-19 Kraftwerk Union Aktiengesellschaft Sonde pour le contrôle de tuyaux par courants de Foucault
EP0023163A1 (fr) * 1979-07-24 1981-01-28 Hotchkiss-Brandt Sogeme H.B.S. Sonde souple destinée au contrôle non destructif de tubes de grande longueur
FR2488693A1 (fr) * 1980-08-18 1982-02-19 Ca Atomic Energy Ltd Sonde de surface a courants de foucault
EP0392295A1 (fr) * 1989-04-13 1990-10-17 Siemens Aktiengesellschaft Sonde à courants de Foucault pour le contrôle de tuyaux dans un générateur de vapeur
FR2663123A1 (fr) * 1990-06-08 1991-12-13 Ca Atomic Energy Ltd Sonde a courants de foucault comportant des bracelets de bobines en galettes pour detecter des defauts internes dans des tubes ferromagnetiques.

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1213600A (fr) * 1957-09-09 1960-04-01 Ici Ltd Dispositif de sondage pour la détection de défauts dans des tubes métalliques
GB936033A (en) * 1960-01-18 1963-09-04 Accles & Pollock Ltd Method of, and means for detecting defects in elongated metallic objects
DE2065003A1 (de) * 1970-07-30 1972-02-03 Foerster F Anordnung zum Prüfen von Rohren aus ferromagnetischem Material auf Fehler an und unter der Oberflache Ausscheidung aus 2037787
DE2115437A1 (de) * 1971-03-30 1972-10-12 Siemens Ag Verfahren zur berührungslosen Leitfähigkeitsmessung
FR2247726A1 (fr) * 1973-10-15 1975-05-09 Ca Atomic Energy Ltd
GB1436186A (en) * 1973-02-05 1976-05-19 Shepherdson M Electro-magnetic non-destructive testing by means of a rotating field
FR2319899A1 (fr) * 1975-08-01 1977-02-25 Aluminum Co Of America Bobine exploratrice de courants de foucault

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1213600A (fr) * 1957-09-09 1960-04-01 Ici Ltd Dispositif de sondage pour la détection de défauts dans des tubes métalliques
GB936033A (en) * 1960-01-18 1963-09-04 Accles & Pollock Ltd Method of, and means for detecting defects in elongated metallic objects
DE2065003A1 (de) * 1970-07-30 1972-02-03 Foerster F Anordnung zum Prüfen von Rohren aus ferromagnetischem Material auf Fehler an und unter der Oberflache Ausscheidung aus 2037787
DE2115437A1 (de) * 1971-03-30 1972-10-12 Siemens Ag Verfahren zur berührungslosen Leitfähigkeitsmessung
GB1436186A (en) * 1973-02-05 1976-05-19 Shepherdson M Electro-magnetic non-destructive testing by means of a rotating field
FR2247726A1 (fr) * 1973-10-15 1975-05-09 Ca Atomic Energy Ltd
FR2319899A1 (fr) * 1975-08-01 1977-02-25 Aluminum Co Of America Bobine exploratrice de courants de foucault

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0008710A1 (fr) * 1978-08-28 1980-03-19 Kraftwerk Union Aktiengesellschaft Sonde pour le contrôle de tuyaux par courants de Foucault
EP0023163A1 (fr) * 1979-07-24 1981-01-28 Hotchkiss-Brandt Sogeme H.B.S. Sonde souple destinée au contrôle non destructif de tubes de grande longueur
FR2461950A1 (fr) * 1979-07-24 1981-02-06 Radiologie Cie Gle Sonde souple destinee au controle non destructif de tubes de grande longueur
FR2488693A1 (fr) * 1980-08-18 1982-02-19 Ca Atomic Energy Ltd Sonde de surface a courants de foucault
EP0392295A1 (fr) * 1989-04-13 1990-10-17 Siemens Aktiengesellschaft Sonde à courants de Foucault pour le contrôle de tuyaux dans un générateur de vapeur
FR2663123A1 (fr) * 1990-06-08 1991-12-13 Ca Atomic Energy Ltd Sonde a courants de foucault comportant des bracelets de bobines en galettes pour detecter des defauts internes dans des tubes ferromagnetiques.

Also Published As

Publication number Publication date
DE2746568A1 (de) 1979-04-26

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