GB1521203A - Non-destructive testing process and apparatus - Google Patents

Non-destructive testing process and apparatus

Info

Publication number
GB1521203A
GB1521203A GB37174/76A GB3717476A GB1521203A GB 1521203 A GB1521203 A GB 1521203A GB 37174/76 A GB37174/76 A GB 37174/76A GB 3717476 A GB3717476 A GB 3717476A GB 1521203 A GB1521203 A GB 1521203A
Authority
GB
United Kingdom
Prior art keywords
circuit
signal
signals
probe
frequency
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
GB37174/76A
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.)
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
Publication of GB1521203A publication Critical patent/GB1521203A/en
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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction

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)
GB37174/76A 1975-09-09 1976-09-08 Non-destructive testing process and apparatus Expired GB1521203A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7527615A FR2324003A1 (fr) 1975-09-09 1975-09-09 Procede de controle non destructif par courants de foucault et dispositif correspondant, utilisant une excitation multifrequence et permettant l'elimination de certains parametres

Publications (1)

Publication Number Publication Date
GB1521203A true GB1521203A (en) 1978-08-16

Family

ID=9159766

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37174/76A Expired GB1521203A (en) 1975-09-09 1976-09-08 Non-destructive testing process and apparatus

Country Status (14)

Country Link
JP (1) JPS602619B2 (de)
BE (1) BE845928A (de)
BR (1) BR7605858A (de)
CA (1) CA1070766A (de)
DD (1) DD126270A5 (de)
DE (1) DE2637201A1 (de)
ES (1) ES451374A1 (de)
FI (1) FI59302C (de)
FR (1) FR2324003A1 (de)
GB (1) GB1521203A (de)
IT (1) IT1074264B (de)
NL (1) NL184387C (de)
SE (1) SE418905B (de)
ZA (1) ZA764982B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2239525A (en) * 1989-12-14 1991-07-03 Gen Electric Swept frequency eddy current system for measuring coating thickness
WO2003036287A1 (de) * 2001-09-24 2003-05-01 Alstom Technology Ltd Verfahren und einrichtung zur kontrolle von lamellierten eisenblechpaketen von elektrischen maschinen auf blechschlüsse
US6815957B2 (en) 2001-09-24 2004-11-09 Alstom (Switzerland) Ltd Method and device for inspecting laminated iron cores of electrical machines for interlamination shorts
CZ306012B6 (cs) * 2014-09-03 2016-06-22 Vysoké Učení Technické V Brně Nedestruktivní indikátor lokálních podpovrchových nehomogenit

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2428234A1 (fr) * 1978-06-07 1980-01-04 Tornbloms Kvalitetskontroll Ab Procede et dispositif pour le controle d'articles
FR2443682A1 (fr) * 1978-12-07 1980-07-04 Commissariat Energie Atomique Circuit de correction automatique d'un signal emis par un capteur differentiel desequilibre
US4292589A (en) * 1979-05-09 1981-09-29 Schlumberger Technology Corporation Eddy current method and apparatus for inspecting ferromagnetic tubular members
US4303885A (en) * 1979-06-18 1981-12-01 Electric Power Research Institute, Inc. Digitally controlled multifrequency eddy current test apparatus and method
US4467281A (en) * 1980-02-29 1984-08-21 Electric Power Research Institute, Inc. Multi frequency eddy current test apparatus with intermediate frequency processing
US4424486A (en) * 1980-10-14 1984-01-03 Zetec, Inc. Phase rotation circuit for an eddy current tester
JPS5791058U (de) * 1980-11-25 1982-06-04
JPS5817354A (ja) * 1981-06-12 1983-02-01 Kobe Steel Ltd 多重周波数渦流探傷による管材検査法
JPS58137748A (ja) * 1982-02-12 1983-08-16 Ishikawajima Harima Heavy Ind Co Ltd 過電流探傷方法
DE3313820A1 (de) * 1983-04-16 1984-10-18 Institut Dr. Friedrich Förster Prüfgerätebau GmbH & Co KG, 7410 Reutlingen Einrichtung zum pruefen der oberflaeche eines metallischen pruefteiles
CA1212997A (fr) * 1983-12-16 1986-10-21 Gerard Durou Methode et systeme de test non destructif a courants de foucault utilisant un balayage en frequences
FR2562668B1 (fr) * 1984-04-05 1987-11-27 Sncf Dispositif de reperage de defauts de rails de chemin de fer par courants de foucault, capable de discriminer les defauts de certaines discontinuites de construction des rails
JPS60262052A (ja) * 1984-06-08 1985-12-25 Sumitomo Metal Ind Ltd 異材弁別方法
JPS6273158A (ja) * 1985-09-27 1987-04-03 Daizaburo Iwasaki 渦流探傷試験における信号処理方法およびその装置
JPS62255863A (ja) * 1986-04-28 1987-11-07 Furukawa Electric Co Ltd:The 渦流探傷器
SE456864B (sv) * 1986-08-27 1988-11-07 Toernbloms Kvalitetskontroll Anordning foer att vid virvelstroemsprovning av omagnetiska provobjekt detektera och undertrycka inverkan av stoerande magnetiska omraaden
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
FR2724019B1 (fr) * 1994-08-31 1997-04-30 Intercontrole Sa Procede d'analyse numerique d'un signal, notamment pour controle par courants de foucault
FR2758882B1 (fr) * 1997-01-27 1999-04-09 Intercontrole Sa Procede de controle non destructif, par courants de foucault, des grappes de commande de reacteurs nucleaires en presence d'elements perturbateurs
JP4762672B2 (ja) * 2005-10-27 2011-08-31 非破壊検査株式会社 磁性材料屈曲部破断検査方法及び検査装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3706029A (en) * 1971-11-16 1972-12-12 Atomic Energy Commission Multiple parameter eddy current nondestructive testing device using plural transformation rotators to resolve each parameter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2239525A (en) * 1989-12-14 1991-07-03 Gen Electric Swept frequency eddy current system for measuring coating thickness
WO2003036287A1 (de) * 2001-09-24 2003-05-01 Alstom Technology Ltd Verfahren und einrichtung zur kontrolle von lamellierten eisenblechpaketen von elektrischen maschinen auf blechschlüsse
US6815957B2 (en) 2001-09-24 2004-11-09 Alstom (Switzerland) Ltd Method and device for inspecting laminated iron cores of electrical machines for interlamination shorts
CZ306012B6 (cs) * 2014-09-03 2016-06-22 Vysoké Učení Technické V Brně Nedestruktivní indikátor lokálních podpovrchových nehomogenit

Also Published As

Publication number Publication date
IT1074264B (it) 1985-04-20
FR2324003B1 (de) 1979-03-02
ES451374A1 (es) 1977-12-16
DE2637201A1 (de) 1977-03-17
NL7609666A (nl) 1977-03-11
FI59302C (fi) 1981-07-10
SE7609913L (sv) 1977-03-10
ZA764982B (en) 1977-07-27
DE2637201C2 (de) 1987-10-08
FR2324003A1 (fr) 1977-04-08
NL184387C (nl) 1989-07-03
SE418905B (sv) 1981-06-29
BR7605858A (pt) 1977-08-16
JPS5233791A (en) 1977-03-15
JPS602619B2 (ja) 1985-01-23
CA1070766A (en) 1980-01-29
DD126270A5 (de) 1977-07-06
BE845928A (fr) 1976-12-31
FI59302B (fi) 1981-03-31
FI762581A (de) 1977-03-10

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19960907