CA1007299A - Magnetic flux leakage inspection method and apparatus - Google Patents

Magnetic flux leakage inspection method and apparatus

Info

Publication number
CA1007299A
CA1007299A CA199,714A CA199714A CA1007299A CA 1007299 A CA1007299 A CA 1007299A CA 199714 A CA199714 A CA 199714A CA 1007299 A CA1007299 A CA 1007299A
Authority
CA
Canada
Prior art keywords
magnetic flux
inspection method
flux leakage
leakage inspection
magnetic
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
CA199,714A
Other languages
English (en)
Other versions
CA199714S (en
Inventor
Theodor Clasen
Wolfgang Henning
Ruby C. Beaver
Emil S. Johnson
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.)
Vetco Inc
Original Assignee
Vetco Offshore Industries Inc
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 Vetco Offshore Industries Inc filed Critical Vetco Offshore Industries Inc
Priority to CA266,730A priority Critical patent/CA1021027A/en
Priority to CA266,731A priority patent/CA1017409A/en
Application granted granted Critical
Publication of CA1007299A publication Critical patent/CA1007299A/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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/005—Investigating fluid-tightness of structures using pigs or moles

Landscapes

  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
CA199,714A 1973-05-14 1974-05-13 Magnetic flux leakage inspection method and apparatus Expired CA1007299A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA266,730A CA1021027A (en) 1973-05-14 1976-11-29 Magnetic flux leakage inspection method and apparatus
CA266,731A CA1017409A (en) 1973-05-14 1976-11-29 Magnetic flux leakage inspection method and apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US36016173A 1973-05-14 1973-05-14
US451505A US3899734A (en) 1973-05-14 1974-03-15 Magnetic flux leakage inspection method and apparatus including magnetic diodes

Publications (1)

Publication Number Publication Date
CA1007299A true CA1007299A (en) 1977-03-22

Family

ID=27000779

Family Applications (1)

Application Number Title Priority Date Filing Date
CA199,714A Expired CA1007299A (en) 1973-05-14 1974-05-13 Magnetic flux leakage inspection method and apparatus

Country Status (7)

Country Link
US (1) US3899734A (de)
JP (1) JPS5017694A (de)
CA (1) CA1007299A (de)
DE (1) DE2423113C2 (de)
FR (1) FR2229970B1 (de)
GB (1) GB1471595A (de)
NL (1) NL173317C (de)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2439662C3 (de) * 1974-08-19 1978-10-12 Graenges Oxeloesunds Jaernverk Ab, Oxeloesund (Schweden) Vorrichtung zum zerstörungsfreien Prüfen von metallischen Rohlingen auf Oberflächenfehler
US4218651A (en) * 1975-07-25 1980-08-19 Ivy Leon H Apparatus for detecting longitudinal and transverse imperfections in elongated ferrous workpieces
JPS5232388A (en) * 1975-09-05 1977-03-11 Mitsubishi Heavy Ind Ltd Wireless type eddy current flaw detection method
JPS52100282A (en) * 1976-02-19 1977-08-23 Toyo Kohan Co Ltd Detector for internal defects of thin steel sheet
GB1586581A (en) * 1977-01-26 1981-03-18 British Gas Corp Pipeline inspection equipment
GB2062235A (en) * 1979-01-05 1981-05-20 British Gas Corp Measuring velocity and/or distance travelled
AT362167B (de) * 1979-01-30 1981-04-27 Ver Edelstahlwerke Ag Verfahren zur pruefung nichtmagnetisierbarer schwerstangen
US4320340A (en) * 1979-09-13 1982-03-16 Dresser Industries, Inc. Apparatus for measuring magnetic flux density resulting from galvanic current flow in subsurface casing using a plurality of flux gates
US4503393A (en) * 1981-10-05 1985-03-05 Exxon Production Research Co. Method and apparatus for detecting flaws in the threaded end of an elongate member using electromagnetic excitation and an automated scanning sensor
US4510447A (en) * 1981-10-26 1985-04-09 Exxon Production Research Co. Inspection apparatus for electromagnetically detecting flaws in the wall of a pipe
WO1984001627A1 (en) * 1982-10-22 1984-04-26 Gap Ges Auswert Patente Magnetic testing apparatus
DE3339323C2 (de) * 1983-10-29 1986-01-30 Busch, Ulrich, 2000 Hamburg Transportkapsel für Rohrleitungssysteme
US4710711A (en) * 1985-12-04 1987-12-01 Western Atlas International, Inc. Apparatus for nondestructive testing of subsurface piping using three coils with opposing fields
US4789827A (en) * 1986-10-31 1988-12-06 Electric Power Research Institute Magnetic flux leakage probe with radially offset coils for use in nondestructive testing of pipes and tubes
DE3638936A1 (de) * 1986-11-14 1988-05-26 Kernforschungsz Karlsruhe Verfahren und einrichtung zur detektion von korrosion oder dergleichen
US5532587A (en) * 1991-12-16 1996-07-02 Vetco Pipeline Services, Inc. Magnetic field analysis method and apparatus for determining stress characteristics in a pipeline
FR2714470B1 (fr) * 1993-12-24 1996-03-01 Unimetall Sa Procédé et dispositif de contrôle magnétique.
RU2176082C1 (ru) * 2000-12-26 2001-11-20 ЗАО "Нефтегазкомплектсервис" Внутритрубный магнитный дефектоскоп
US6917176B2 (en) * 2001-03-07 2005-07-12 Carnegie Mellon University Gas main robotic inspection system
CN103235034A (zh) * 2013-03-29 2013-08-07 中国石油集团西部管道有限责任公司 一种天然气长输管道三维高清漏磁内检测装置
JP6160331B2 (ja) * 2013-07-25 2017-07-12 Ｊｆｅエンジニアリング株式会社 腐食検査用ピグ
RU2571242C1 (ru) * 2014-05-23 2015-12-20 Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный университет аэрокосмического приборостроения" Автономный адаптивно шагающий робот для диагностики газопроводов
US10401325B2 (en) 2016-08-11 2019-09-03 Novitech, Inc. Magnetizers for pigging tools
CN109100417B (zh) * 2018-09-13 2023-09-08 中国石油大学(北京) 管件无损检测装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2746012A (en) * 1952-04-17 1956-05-15 Tuboscope Company Inductive electromagnetic inspection
US3116452A (en) * 1960-06-06 1963-12-31 Shell Oil Co Eddy current type pipeline flaw testing and flaw location marking device
US3225293A (en) * 1964-02-20 1965-12-21 Fenton M Wood Apparatus for inspecting pipe for defects
GB1169752A (en) * 1965-12-04 1969-11-05 Sumitomo Metal Ind Magnetic Inspecting Apparatus
US3460028A (en) * 1967-11-03 1969-08-05 American Mach & Foundry Pipeline inspection apparatus with means for correlating the recorded defect signals with the angular position within the pipeline at which they were generated
DE1816207A1 (de) * 1968-12-20 1970-07-02 American Mach & Foundry Verfahren zur zerstoerungsfreien Materialpruefung und Vorrichtung zur Durchfuehrung des Verfahrens
US3670239A (en) * 1970-03-19 1972-06-13 Sumitomo Metal Ind Method and apparatus for magnetic flaw detection by using magneto-sensitive diodes
CA953364A (en) * 1970-07-20 1974-08-20 Amf Incorporated Apparatus and method for pipeline inspection

Also Published As

Publication number Publication date
NL173317C (nl) 1984-01-02
US3899734A (en) 1975-08-12
GB1471595A (en) 1977-04-27
DE2423113C2 (de) 1984-11-15
NL7405615A (de) 1974-11-18
NL173317B (nl) 1983-08-01
FR2229970A1 (de) 1974-12-13
JPS5017694A (de) 1975-02-25
DE2423113A1 (de) 1974-12-05
FR2229970B1 (de) 1976-06-25

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