DE3279253D1 - Method and apparatus for controlling a surface with an eddy current sensor - Google Patents

Method and apparatus for controlling a surface with an eddy current sensor

Info

Publication number
DE3279253D1
DE3279253D1 DE8282401626T DE3279253T DE3279253D1 DE 3279253 D1 DE3279253 D1 DE 3279253D1 DE 8282401626 T DE8282401626 T DE 8282401626T DE 3279253 T DE3279253 T DE 3279253T DE 3279253 D1 DE3279253 D1 DE 3279253D1
Authority
DE
Germany
Prior art keywords
controlling
current sensor
eddy current
eddy
sensor
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
DE8282401626T
Other languages
English (en)
Inventor
Bernard David
Michel Pigeon
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Application granted granted Critical
Publication of DE3279253D1 publication Critical patent/DE3279253D1/de
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
    • 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
    • G01N27/9073—Recording measured data
DE8282401626T 1981-09-14 1982-09-02 Method and apparatus for controlling a surface with an eddy current sensor Expired DE3279253D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8117312A FR2512959A1 (fr) 1981-09-14 1981-09-14 Procede et dispositifs de controle d'une surface au moyen d'un capteur a courants de foucault

Publications (1)

Publication Number Publication Date
DE3279253D1 true DE3279253D1 (en) 1989-01-05

Family

ID=9262114

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282401626T Expired DE3279253D1 (en) 1981-09-14 1982-09-02 Method and apparatus for controlling a surface with an eddy current sensor

Country Status (4)

Country Link
US (1) US4555664A (de)
EP (1) EP0074889B1 (de)
DE (1) DE3279253D1 (de)
FR (1) FR2512959A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL68155A0 (en) * 1982-08-03 1983-06-15 Gen Electric Eddy current microscope
IT1177991B (it) * 1984-09-25 1987-09-03 Centro Speriment Metallurg Sonda industriale di tipo differenziale ad una sola bobina per il controllo non distruttivo di prodotti siderurgici
SE456611B (sv) * 1986-04-18 1988-10-17 Tornbloms Kvalitetskontroll Ab Anordning for signallagring och/eller signalbehandling av fran en givare erhallna signaler
SE467711B (sv) * 1987-02-09 1992-08-31 Bengt Hjalmar Toernblom Anordning foer maetning/provning med virvelstroemsteknik medelst flera dynamiskt kompenserade givare
EP0536333A1 (de) * 1990-06-29 1993-04-14 Abb Amdata Inc. System zur wirbelstromabbildung
US5418823A (en) * 1994-01-04 1995-05-23 General Electric Company Combined ultrasonic and eddy-current method and apparatus for non-destructive testing of tubular objects to determine thickness of metallic linings or coatings
FR2791170B1 (fr) * 1999-03-16 2001-06-22 Atea Soc Atlantique De Tech Av Procede et dispositif de controle de la presence d'un joint d'etancheite metallique dans une connexion d'une ligne electrique
EP2124044B1 (de) * 2008-05-20 2011-09-07 Siemens Aktiengesellschaft Verfahren zum Bestimmen und Bewerten von Wirbelstromanzeigen, insbesondere von Rissen, in einem Prüfgegenstand aus einem elektrisch leitfähigen Material
DE102016208599A1 (de) * 2016-05-19 2017-11-23 Bayerische Motoren Werke Aktiengesellschaft Zerstörungsfreies Verfahren zur Bestimmung der Faserorientierung von kohlefaserverstärkten Materialien

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3419797A (en) * 1966-01-21 1968-12-31 Atomic Energy Commission Usa Nondestructive eddy current testing device for testing metal tubing and instantaneously displaying the cross section of said tubing
AT336925B (de) * 1974-07-11 1977-06-10 Kretztechnik Gmbh Verfahren zum auswerten von aus der prufung bzw. untersuchung von objekten mit ultraschall nach dem impuls-echoverfahren gewonnenen informationen
DE2518866C2 (de) * 1975-04-28 1982-10-21 Siemens AG, 1000 Berlin und 8000 München Elektrischer Wickelkondensator
US4194149A (en) * 1977-12-15 1980-03-18 The Babcock & Wilcox Company Method for generating the eddy current signature of a flaw in a tube proximate a contiguous member which obscures the flaw signal
JPS54120522A (en) * 1978-03-10 1979-09-19 Pacific Kogyo Kk Code converter
US4241412A (en) * 1979-03-16 1980-12-23 Diasonics, Inc. Polar to cartesian mapping apparatus and method

Also Published As

Publication number Publication date
FR2512959B1 (de) 1983-10-28
FR2512959A1 (fr) 1983-03-18
EP0074889A3 (en) 1985-10-23
US4555664A (en) 1985-11-26
EP0074889B1 (de) 1988-11-30
EP0074889A2 (de) 1983-03-23

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Legal Events

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