FR2724019B1 - Procede d'analyse numerique d'un signal, notamment pour controle par courants de foucault - Google Patents

Procede d'analyse numerique d'un signal, notamment pour controle par courants de foucault

Info

Publication number
FR2724019B1
FR2724019B1 FR9410470A FR9410470A FR2724019B1 FR 2724019 B1 FR2724019 B1 FR 2724019B1 FR 9410470 A FR9410470 A FR 9410470A FR 9410470 A FR9410470 A FR 9410470A FR 2724019 B1 FR2724019 B1 FR 2724019B1
Authority
FR
France
Prior art keywords
signal
current control
digital analysis
edge current
edge
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 - Fee Related
Application number
FR9410470A
Other languages
English (en)
Other versions
FR2724019A1 (fr
Inventor
Jean Yves Combes
Ledinghen Edouard De
Franck Lionti
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.)
Intercontrole SA
Original Assignee
Intercontrole SA
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 Intercontrole SA filed Critical Intercontrole SA
Priority to FR9410470A priority Critical patent/FR2724019B1/fr
Publication of FR2724019A1 publication Critical patent/FR2724019A1/fr
Application granted granted Critical
Publication of FR2724019B1 publication Critical patent/FR2724019B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
    • 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
FR9410470A 1994-08-31 1994-08-31 Procede d'analyse numerique d'un signal, notamment pour controle par courants de foucault Expired - Fee Related FR2724019B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9410470A FR2724019B1 (fr) 1994-08-31 1994-08-31 Procede d'analyse numerique d'un signal, notamment pour controle par courants de foucault

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9410470A FR2724019B1 (fr) 1994-08-31 1994-08-31 Procede d'analyse numerique d'un signal, notamment pour controle par courants de foucault

Publications (2)

Publication Number Publication Date
FR2724019A1 FR2724019A1 (fr) 1996-03-01
FR2724019B1 true FR2724019B1 (fr) 1997-04-30

Family

ID=9466599

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9410470A Expired - Fee Related FR2724019B1 (fr) 1994-08-31 1994-08-31 Procede d'analyse numerique d'un signal, notamment pour controle par courants de foucault

Country Status (1)

Country Link
FR (1) FR2724019B1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2324003A1 (fr) * 1975-09-09 1977-04-08 Commissariat Energie Atomique Procede de controle non destructif par courants de foucault et dispositif correspondant, utilisant une excitation multifrequence et permettant l'elimination de certains parametres
US4303885A (en) * 1979-06-18 1981-12-01 Electric Power Research Institute, Inc. Digitally controlled multifrequency eddy current test apparatus and method
FR2693797B1 (fr) * 1992-07-20 1994-10-21 Geophysique Cie Gle Système de contrôle de canalisations, notamment de canalisations en acier nu ou enrobé.

Also Published As

Publication number Publication date
FR2724019A1 (fr) 1996-03-01

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20100430