ES8703020A1 - Procedimiento y su correspondiente dispositivo de deteccion por corrientes de foncault, de defectos tipicos sobre un producto. - Google Patents

Procedimiento y su correspondiente dispositivo de deteccion por corrientes de foncault, de defectos tipicos sobre un producto.

Info

Publication number
ES8703020A1
ES8703020A1 ES547131A ES547131A ES8703020A1 ES 8703020 A1 ES8703020 A1 ES 8703020A1 ES 547131 A ES547131 A ES 547131A ES 547131 A ES547131 A ES 547131A ES 8703020 A1 ES8703020 A1 ES 8703020A1
Authority
ES
Spain
Prior art keywords
signal
collected
foucault currents
projection
product
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
ES547131A
Other languages
English (en)
Other versions
ES547131A0 (es
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 ES8703020A1 publication Critical patent/ES8703020A1/es
Publication of ES547131A0 publication Critical patent/ES547131A0/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
    • 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

PROCEDIMIENTO Y DISPOSITIVO DE DETECCION, POR CORRIENTES DE FOUCAULT, DE DEFECTOS TIPICOS SOBRE UN PRODUCTO. EL PROCEDIMIENTO COMPRENDE LAS SIGUIENTES OPERACIONES: PRIMERA, SE PRODUCE UN CAMPO MAGNETICO ALTERNATIVO PARA PROVOCAR LA CIRCULACION DE CORRIENTES DE FOUCAULT EN LA SUPERFICIE DEL PRODUCTO; SEGUNDA, SE RECOGEN LAS SEÑALES REPRESENTATIVAS DE LAS VARIACIONES DE LAS CORRIENTES DE FOUCAULT, POR MEDIO DE UN CAPTADOR DIFERENCIAL, SITUADO EN LA PROXIMIDAD DE LA SUPERFICIE DEL PRODUCTO; Y POR ULTIMO, SE DEMODULAN LAS SEÑALES RECOGIDAS, POR PROYECCION SEGUN UN ANGULO DE FASE REGULABLE, PARA DETECTAR LAS PERTURBACIONES INTRODUCIDAS POR LOS DEFECTOS A DETECTAR. DE APLICACION EN LA DETECCION DE FISURAS SOBRE UN LLANTON O UN PRODUCTO SIMILAR.
ES547131A 1984-09-20 1985-09-19 Procedimiento y su correspondiente dispositivo de deteccion por corrientes de foncault, de defectos tipicos sobre un producto. Expired ES8703020A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8414434A FR2570500B1 (fr) 1984-09-20 1984-09-20 Procede et dispositif de detection de defauts typiques sur un produit en defilement, notamment pour la detection de criques sur une brame

Publications (2)

Publication Number Publication Date
ES8703020A1 true ES8703020A1 (es) 1987-01-16
ES547131A0 ES547131A0 (es) 1987-01-16

Family

ID=9307897

Family Applications (1)

Application Number Title Priority Date Filing Date
ES547131A Expired ES8703020A1 (es) 1984-09-20 1985-09-19 Procedimiento y su correspondiente dispositivo de deteccion por corrientes de foncault, de defectos tipicos sobre un producto.

Country Status (12)

Country Link
US (1) US4799011A (es)
EP (1) EP0195792B1 (es)
JP (1) JPH0658346B2 (es)
KR (1) KR920004534B1 (es)
AU (1) AU584927B2 (es)
BR (1) BR8506934A (es)
CA (1) CA1264354A (es)
DE (1) DE3566304D1 (es)
ES (1) ES8703020A1 (es)
FR (1) FR2570500B1 (es)
WO (1) WO1986001895A1 (es)
ZA (1) ZA857076B (es)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4823082A (en) * 1986-02-18 1989-04-18 Kabushiki Kaisha Kobe Seiko Sho Signal processing method for an electromagnetic induction test
DE3720686A1 (de) * 1987-06-23 1989-01-05 Foerster Inst Dr Friedrich Verfahren zum untersuchen eines objektes
US5055784A (en) * 1987-12-07 1991-10-08 American Research Corporation Of Virginia Bridgeless system for directly measuring complex impedance of an eddy current probe
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
DE3817574A1 (de) * 1988-05-24 1989-11-30 Fraunhofer Ges Forschung Wirbelstromsensor
DE3827229A1 (de) * 1988-08-11 1990-02-15 Industrieanlagen Betriebsges Verfahren und vorrichtung zur zerstoerungsfreien pruefung von faserverstaerkten kunststoffen mittels wirbelstromsonden
US5144231A (en) * 1988-09-30 1992-09-01 Jeffrey Tenenbaum Eddy current detector for detecting an object with offset compensation
US5101366A (en) * 1989-12-18 1992-03-31 General Electric Company Method for controlling the manufacture of zirconium tubes
US5442285A (en) * 1994-02-28 1995-08-15 Westinghouse Electric Corporation NDE eddy current sensor for very high scan rate applications in an operating combustion turbine
US6201391B1 (en) 1998-10-07 2001-03-13 Southwest Research Institute Nonlinear harmonics method and system for measuring degradation in protective coatings
US6346807B1 (en) * 1999-10-22 2002-02-12 Bently Nevada Corporation Digital eddy current proximity system: apparatus and method
DE10045715A1 (de) * 2000-09-15 2002-03-28 Busch Dieter & Co Prueftech Verfahren und Vorrichtung zur Prüfung eines Werkstücks mittels Wirbelströmen
KR100505929B1 (ko) * 2003-03-31 2005-08-04 삼성광주전자 주식회사 압축기 및 압축기의 배관연결방법
US20100045276A1 (en) * 2007-01-25 2010-02-25 Board Of Trustees Of Michigan State University Eddy current inspection system
FI20085456L (fi) * 2008-05-15 2009-11-16 Valtion Teknillinen Menetelmä ja laitteisto sähköisen koodin tunnistamiseksi
US8742752B2 (en) * 2010-10-01 2014-06-03 Westinghouse Electric Company Llc Nondestructive inspection method for a heat exchanger employing adaptive noise thresholding
DE102011122481B4 (de) 2011-12-20 2017-10-26 Barbara Renner Verfahren und Anordnung zur Überwachung und Lokalisierung von Materialschäden und Diskontinuitäten in Leichtbau-Verbundstrukturen
CN103163211B (zh) * 2013-03-14 2016-01-20 天津大学 一种金属导体表面和亚表面缺陷分类识别方法
JP6321397B2 (ja) * 2014-02-19 2018-05-09 株式会社イシダ 脂質含有率推定装置
CN109975396A (zh) * 2017-12-27 2019-07-05 核动力运行研究所 一种传热管涡流检测差分通道信号对称性测量方法
CN114112736B (zh) * 2020-08-28 2023-11-14 宝山钢铁股份有限公司 确定低碳钢冷轧薄板断裂延伸率的在线测量装置及方法
DE102020216284A1 (de) 2020-12-18 2022-06-23 Fertigungsgerätebau Adolf Steinbach GmbH & Co. KG Prüfvorrichtung, Prüfverfahren und Prüfprogramm zur zerstörungsfreien Bauteil- und/oder Werkstückprüfung und phasenabhängiger Kantenauswertung

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU3837372A (en) * 1971-02-01 1973-08-02 Automation Industries, Inc Eddy current nondestructive testing system
JPS5757657B2 (es) * 1974-09-30 1982-12-06 Shimadzu Seisakusho Ltd
US4006407A (en) * 1975-03-10 1977-02-01 Magnaflux Corporation Non-destructive testing systems having automatic balance and sample and hold operational modes
US4074186A (en) * 1975-09-19 1978-02-14 Magnaflux Corporation Conductivity measuring instrument having linearization means and a digital read-out
US4134067A (en) * 1977-09-09 1979-01-09 The Boeing Company Rotary eddy current flaw detector utilizing differentially unbalanced coils and the amplitude of a rotary induced pulse to produce the charging voltage for the sweep generator
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
DE2825958C2 (de) * 1978-06-14 1986-02-20 Institut Dr. Friedrich Förster Prüfgerätebau GmbH & Co KG, 7410 Reutlingen Magnetisches oder magnetinduktives Werkstoffprüfgerät mit Nullpunktkompensationseinrichtung
GB2028510B (en) * 1978-08-21 1983-02-16 Defence Sercretary Of State Fo Apparatus for the detection of defects in engineering materials
US4303885A (en) * 1979-06-18 1981-12-01 Electric Power Research Institute, Inc. Digitally controlled multifrequency eddy current test apparatus and method
DE2937865A1 (de) * 1979-09-19 1981-04-02 Kraftwerk Union AG, 4330 Mülheim Verfahren zur automatischen auswertung der signale von wirbelstrommesssonden
JPS56141553A (en) * 1980-04-07 1981-11-05 Sumitomo Metal Ind Ltd Discriminating method for signal in eddy current flaw detection
US4424486A (en) * 1980-10-14 1984-01-03 Zetec, Inc. Phase rotation circuit for an eddy current tester
JPS5793250A (en) * 1980-11-29 1982-06-10 Japan Atom Energy Res Inst Method for detecting flaw by using eddy current
US4414508A (en) * 1981-03-30 1983-11-08 Lockheed Corporation Method and apparatus for automated inspection of fastener holes by eddy current
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.
JPS5975146A (ja) * 1982-10-21 1984-04-27 Chugoku X Sen Kk 金属管の渦流探傷装置
FR2541772B1 (fr) * 1983-02-24 1985-06-14 Aerospatiale Procede et dispositif pour l'examen non destructif de jonctions rivetees ou analogues au moyen d'une sonde a courants de foucault

Also Published As

Publication number Publication date
ZA857076B (en) 1986-04-30
WO1986001895A1 (fr) 1986-03-27
EP0195792A1 (fr) 1986-10-01
BR8506934A (pt) 1986-12-23
AU584927B2 (en) 1989-06-08
JPH0658346B2 (ja) 1994-08-03
EP0195792B1 (fr) 1988-11-17
FR2570500A1 (fr) 1986-03-21
KR880700266A (ko) 1988-02-22
KR920004534B1 (ko) 1992-06-08
US4799011A (en) 1989-01-17
DE3566304D1 (en) 1988-12-22
FR2570500B1 (fr) 1987-03-20
CA1264354A (en) 1990-01-09
AU4860685A (en) 1986-04-08
ES547131A0 (es) 1987-01-16
JPS62500261A (ja) 1987-01-29

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20041115