FR2451032A1 - Appareil numerique pour le controle de pieces par courants de foucault - Google Patents

Appareil numerique pour le controle de pieces par courants de foucault

Info

Publication number
FR2451032A1
FR2451032A1 FR7906149A FR7906149A FR2451032A1 FR 2451032 A1 FR2451032 A1 FR 2451032A1 FR 7906149 A FR7906149 A FR 7906149A FR 7906149 A FR7906149 A FR 7906149A FR 2451032 A1 FR2451032 A1 FR 2451032A1
Authority
FR
France
Prior art keywords
digital
digital apparatus
edge current
phase comparator
counter
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.)
Granted
Application number
FR7906149A
Other languages
English (en)
French (fr)
Other versions
FR2451032B1 (enExample
Inventor
David Da Costa Vieira
Jacques Dinard
Alain Stossel
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
Priority to FR7906149A priority Critical patent/FR2451032A1/fr
Priority to DE8080400266T priority patent/DE3062493D1/de
Priority to EP80400266A priority patent/EP0015822B1/fr
Priority to US06/126,364 priority patent/US4322683A/en
Priority to JP2745480A priority patent/JPS55122145A/ja
Publication of FR2451032A1 publication Critical patent/FR2451032A1/fr
Application granted granted Critical
Publication of FR2451032B1 publication Critical patent/FR2451032B1/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)
FR7906149A 1979-03-09 1979-03-09 Appareil numerique pour le controle de pieces par courants de foucault Granted FR2451032A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR7906149A FR2451032A1 (fr) 1979-03-09 1979-03-09 Appareil numerique pour le controle de pieces par courants de foucault
DE8080400266T DE3062493D1 (en) 1979-03-09 1980-02-26 Digital eddy current apparatus for testing specimens
EP80400266A EP0015822B1 (fr) 1979-03-09 1980-02-26 Appareil numérique pour le contrôle de pièces par courants de Foucault
US06/126,364 US4322683A (en) 1979-03-09 1980-03-03 Control apparatus for eddy current non-destructive testing using a digital compensating circuit
JP2745480A JPS55122145A (en) 1979-03-09 1980-03-06 Device for controlling member by eddy current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7906149A FR2451032A1 (fr) 1979-03-09 1979-03-09 Appareil numerique pour le controle de pieces par courants de foucault

Publications (2)

Publication Number Publication Date
FR2451032A1 true FR2451032A1 (fr) 1980-10-03
FR2451032B1 FR2451032B1 (enExample) 1981-10-23

Family

ID=9222981

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7906149A Granted FR2451032A1 (fr) 1979-03-09 1979-03-09 Appareil numerique pour le controle de pieces par courants de foucault

Country Status (5)

Country Link
US (1) US4322683A (enExample)
EP (1) EP0015822B1 (enExample)
JP (1) JPS55122145A (enExample)
DE (1) DE3062493D1 (enExample)
FR (1) FR2451032A1 (enExample)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0338542B2 (enExample) * 1980-05-22 1991-06-11 Secr Defence Brit
FR2502337A1 (fr) * 1981-03-23 1982-09-24 Commissariat Energie Atomique Procede de controle non destructif par courants de foucault avec correction des effets d'entrefer et dispositif de mise en oeuvre
US4455529A (en) * 1981-06-08 1984-06-19 Schlumberger Technology Corporation Digital induction logging tool including means for measuring phase quadrature components in a phase sensitive detector
US4499422A (en) * 1981-06-08 1985-02-12 Schlumberger Technology Corporation Digital induction logging tool including means for compensating for phase shift errors
US4499421A (en) * 1981-06-08 1985-02-12 Schlumberger Technology Corporation Digital induction logging system including means for generating a plurality of transmitter frequencies
US4720681A (en) * 1981-06-08 1988-01-19 Schlumberger Technology Corporation Digital induction logging tool
DE3125732A1 (de) * 1981-06-30 1983-01-13 Nukem Gmbh, 6450 Hanau Verfahren und vorrichtung zur werkstoffpruefung nach dem wirbelstromprinzip
US4481471A (en) * 1981-08-14 1984-11-06 Westinghouse Electric Corp. Method and apparatus for the detection of anomalies in rotating members
JPS5858569A (ja) * 1981-10-02 1983-04-07 Fuji Xerox Co Ltd 電子複写機のトナ−比率検知装置
BE892243A (fr) * 1982-02-23 1982-06-16 Dev Et D Industrialisation Des Appareil de controle par courants de foucault a moyens d'equilibrage electroniques.
DE3213267A1 (de) * 1982-04-08 1983-10-20 Nukem Gmbh, 6450 Hanau Verfahren und vorrichtung zur pruefung von werkstoffen nach dem wirbelstromprinzip
US4709213A (en) * 1982-07-23 1987-11-24 Garrett Electronics, Inc. Metal detector having digital signal processing
US4620152A (en) * 1983-01-11 1986-10-28 Amf Tuboscope, Inc. Lift-off compensation of eddy current probes by translating without rotation the X-Y coordinate plot of the complex locus of the probe output
US4599560A (en) * 1983-04-11 1986-07-08 The Warner & Swasey Company AC excited transducer having stabilized phase sensitive demodulator circuit
FR2570501B1 (fr) * 1984-09-20 1987-12-18 Siderurgie Fse Inst Rech Procede de detection de defauts de surface par courants de foucault et dispositif mettant en oeuvre ce procede
US4798920A (en) * 1985-09-06 1989-01-17 Hitachi Seiko, Ltd. Stylus coordinate determining device with distortion compensation
DE3542159A1 (de) * 1985-11-28 1987-06-04 Nukem Gmbh Verfahren zur werkstoffpruefung nach dem wirbelstromprinzip und vorrichtung zur durchfuehrung des verfahrens
US4755753A (en) * 1986-07-23 1988-07-05 General Electric Company Eddy current surface mapping system for flaw detection
FR2627862A1 (fr) * 1988-02-26 1989-09-01 Commissariat Energie Atomique Procede de controle par courants de foucault impulsionnels et dispositif de mise en oeuvre
US6346807B1 (en) * 1999-10-22 2002-02-12 Bently Nevada Corporation Digital eddy current proximity system: apparatus and method
DE10229735A1 (de) * 2002-07-02 2004-01-22 rinas Gerätetechnik GmbH Verfahren zum Erkennen und Lokalisieren von Materialfehlern
KR100505929B1 (ko) * 2003-03-31 2005-08-04 삼성광주전자 주식회사 압축기 및 압축기의 배관연결방법
US7113873B2 (en) * 2003-11-26 2006-09-26 General Electric Company Method and system for using eddy current transducers in pressure measurements
US7068041B2 (en) * 2003-11-26 2006-06-27 General Electric Company Method and system for multi-frequency inductive ratio measurement
US6873149B1 (en) 2003-11-26 2005-03-29 General Electric Company Method and system for eddy current proximity system noise reduction
EP1792173B1 (de) * 2004-07-19 2015-07-08 Prüftechnik Dieter Busch AG Vorrichtung und Verfahren zur Erkennung von Defekten an Gegenständen oder zur Ortung von metallischen Objekten
JP4756409B1 (ja) 2011-02-18 2011-08-24 大日機械工業株式会社 交番磁場を利用した非破壊検査装置および非破壊検査方法
WO2015061487A2 (en) * 2013-10-22 2015-04-30 Jentek Sensors, Inc. Method and apparatus for measurement of material condition
FR3151394A1 (fr) * 2023-07-20 2025-01-24 Psa Automobiles Sa Procede de controle de traitement thermique d’un bol de fusee de roue

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1335569A (fr) * 1962-07-07 1963-08-23 Schlumberger Prospection Perfectionnements aux appareils de mesure de conductivité par induction
US3337796A (en) * 1965-04-19 1967-08-22 Automation Forster Inc Eddy current testing device with means for sampling the output signal to provide a signal proportional to the instantaneous value of said output signal at a particular phase
FR2010781A1 (enExample) * 1968-06-12 1970-02-20 Nippon Kokan Kk

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3229198A (en) * 1962-09-28 1966-01-11 Hugo L Libby Eddy current nondestructive testing device for measuring multiple parameter variables of a metal sample
CH580811A5 (enExample) * 1975-01-14 1976-10-15 Sodeco Compteurs De Geneve
US4059795A (en) * 1976-06-03 1977-11-22 Sensor Corporation Digital eddy current apparatus for sensing and analyzing metallurgical characteristics of an electrically conductive material
US4084136A (en) * 1976-10-21 1978-04-11 Battelle Memorial Institute Eddy current nondestructive testing device for measuring variable characteristics of a sample utilizing Walsh functions
US4207520A (en) * 1978-04-06 1980-06-10 The United States Of America As Represented By The Secretary Of The Air Force Multiple frequency digital eddy current inspection system
DE2825958C2 (de) 1978-06-14 1986-02-20 Institut Dr. Friedrich Förster Prüfgerätebau GmbH & Co KG, 7410 Reutlingen Magnetisches oder magnetinduktives Werkstoffprüfgerät mit Nullpunktkompensationseinrichtung
US4230987A (en) * 1979-02-26 1980-10-28 Sensor Corporation Digital eddy current apparatus for generating metallurgical signatures and monitoring metallurgical contents of an electrically conductive material

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1335569A (fr) * 1962-07-07 1963-08-23 Schlumberger Prospection Perfectionnements aux appareils de mesure de conductivité par induction
US3337796A (en) * 1965-04-19 1967-08-22 Automation Forster Inc Eddy current testing device with means for sampling the output signal to provide a signal proportional to the instantaneous value of said output signal at a particular phase
FR2010781A1 (enExample) * 1968-06-12 1970-02-20 Nippon Kokan Kk

Also Published As

Publication number Publication date
FR2451032B1 (enExample) 1981-10-23
EP0015822A1 (fr) 1980-09-17
JPS55122145A (en) 1980-09-19
DE3062493D1 (en) 1983-05-05
US4322683A (en) 1982-03-30
EP0015822B1 (fr) 1983-03-30

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