JPH0457961B2 - - Google Patents

Info

Publication number
JPH0457961B2
JPH0457961B2 JP58121288A JP12128883A JPH0457961B2 JP H0457961 B2 JPH0457961 B2 JP H0457961B2 JP 58121288 A JP58121288 A JP 58121288A JP 12128883 A JP12128883 A JP 12128883A JP H0457961 B2 JPH0457961 B2 JP H0457961B2
Authority
JP
Japan
Prior art keywords
magnetic field
tube
current
corrosion
test tube
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 - Lifetime
Application number
JP58121288A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6013205A (ja
Inventor
Takeo Yamada
Hiroyuki Hojo
Akio Nagamune
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.)
JFE Engineering Corp
Original Assignee
Nippon Kokan Ltd
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 Nippon Kokan Ltd filed Critical Nippon Kokan Ltd
Priority to JP12128883A priority Critical patent/JPS6013205A/ja
Priority to DE19843424308 priority patent/DE3424308A1/de
Priority to GB08416773A priority patent/GB2143331A/en
Priority to FR8410647A priority patent/FR2548785A1/fr
Publication of JPS6013205A publication Critical patent/JPS6013205A/ja
Publication of JPH0457961B2 publication Critical patent/JPH0457961B2/ja
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

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)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
JP12128883A 1983-07-04 1983-07-04 管体の腐食位置検出装置及びその検出方法 Granted JPS6013205A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP12128883A JPS6013205A (ja) 1983-07-04 1983-07-04 管体の腐食位置検出装置及びその検出方法
DE19843424308 DE3424308A1 (de) 1983-07-04 1984-07-02 Vorrichtung zur ortung eines defekten bereichs eines metallrohres
GB08416773A GB2143331A (en) 1983-07-04 1984-07-02 Apparatus for detecting the defective portion of a metallic tube
FR8410647A FR2548785A1 (fr) 1983-07-04 1984-07-04 Appareil pour detecter une partie defectueuse dans un tube metallique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12128883A JPS6013205A (ja) 1983-07-04 1983-07-04 管体の腐食位置検出装置及びその検出方法

Publications (2)

Publication Number Publication Date
JPS6013205A JPS6013205A (ja) 1985-01-23
JPH0457961B2 true JPH0457961B2 (zh) 1992-09-16

Family

ID=14807542

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12128883A Granted JPS6013205A (ja) 1983-07-04 1983-07-04 管体の腐食位置検出装置及びその検出方法

Country Status (4)

Country Link
JP (1) JPS6013205A (zh)
DE (1) DE3424308A1 (zh)
FR (1) FR2548785A1 (zh)
GB (1) GB2143331A (zh)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5479100A (en) * 1994-05-10 1995-12-26 Gas Research Institute Method for detecting anomalies in pipes
US5537035A (en) * 1994-05-10 1996-07-16 Gas Research Institute Apparatus and method for detecting anomalies in ferrous pipe structures
DE19654868A1 (de) * 1996-12-24 1998-06-25 Forschungsgesellschaft Fuer In Prüfverfahren zur Erkennung von Korrosion
DE19819066A1 (de) * 1998-04-29 1999-11-11 F I T Messtechnik Gmbh Prüfverfahren zur berührungslosen Erkennung von Ungleichmäßigkeiten in der Wanddicke von unzugänglichen metallischen Rohren
US6815946B2 (en) 1999-04-05 2004-11-09 Halliburton Energy Services, Inc. Magnetically activated well tool
US6411084B1 (en) * 1999-04-05 2002-06-25 Halliburton Energy Services, Inc. Magnetically activated well tool
DE10030191C2 (de) * 2000-06-19 2002-10-31 Hahn Meitner Inst Berlin Gmbh Vorrichtung und Verfahren zur Ortung und zur Bestimmung der Ausdehnung von nicht sichtbaren Körpern aus ferromagnetischen Materialien in nichtferromagnetischer Umgebung
JP2003068234A (ja) 2001-08-29 2003-03-07 Nippon Electric Glass Co Ltd 投射管用ファンネル・ネック封合体
EP1357380A1 (de) * 2002-04-24 2003-10-29 NP Inspection Services GmbH Prüfverfahren und Prüfvorrichtung zur Erkennung von Ungleichmässigkeiten in der Wandstärke von ferromagnetischen Rohren
JP6007923B2 (ja) * 2014-01-22 2016-10-19 横河電機株式会社 減肉検出装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2371176A (en) * 1945-03-13 Means for and method of detecting
US1978252A (en) * 1930-10-25 1934-10-23 Sperry Prod Inc Flaw detector for boiler welds
GB631988A (en) * 1947-07-25 1949-11-14 Superheater Co Ltd Improvements in and relating to apparatus for testing materials by magnetic or electrical analysis
US3284702A (en) * 1963-04-26 1966-11-08 Camco Inc Apparatus for detecting coating holidays in metal pipeline walls utilizing helically wound pick-up coils and selfcontained power system
GB1155817A (en) * 1967-06-09 1969-06-25 Forster F M O Magnetic nondestructive testing system
GB1200146A (en) * 1967-08-17 1970-07-29 Friedrich M O Foerster Measuring magnetic fields
US3753091A (en) * 1972-04-10 1973-08-14 Submarine Pipeline Technology Method and device for detecting faults in non-conductive coatings on under water pipelines
GB1586581A (en) * 1977-01-26 1981-03-18 British Gas Corp Pipeline inspection equipment
JPS5826256A (ja) * 1981-08-07 1983-02-16 Kubota Ltd 管の検査装置

Also Published As

Publication number Publication date
DE3424308A1 (de) 1985-01-17
GB2143331A (en) 1985-02-06
GB8416773D0 (en) 1984-08-08
FR2548785A1 (fr) 1985-01-11
JPS6013205A (ja) 1985-01-23

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