DE3321375C2 - Verfahren und Vorrichtung zur Messung von Oberflächenfehlstellen an Metallen - Google Patents

Verfahren und Vorrichtung zur Messung von Oberflächenfehlstellen an Metallen

Info

Publication number
DE3321375C2
DE3321375C2 DE19833321375 DE3321375A DE3321375C2 DE 3321375 C2 DE3321375 C2 DE 3321375C2 DE 19833321375 DE19833321375 DE 19833321375 DE 3321375 A DE3321375 A DE 3321375A DE 3321375 C2 DE3321375 C2 DE 3321375C2
Authority
DE
Germany
Prior art keywords
magnetic field
detector
examination object
magnetic
defects
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
DE19833321375
Other languages
German (de)
English (en)
Other versions
DE3321375A1 (de
Inventor
Tatsuo Hiroshima
Tetsuya Amagasaki Hyogo Hirota
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Publication of DE3321375A1 publication Critical patent/DE3321375A1/de
Application granted granted Critical
Publication of DE3321375C2 publication Critical patent/DE3321375C2/de
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
    • 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)
DE19833321375 1982-06-14 1983-06-14 Verfahren und Vorrichtung zur Messung von Oberflächenfehlstellen an Metallen Expired DE3321375C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57102600A JPS58218644A (ja) 1982-06-14 1982-06-14 金属材料の表面疵探傷方法及びその装置

Publications (2)

Publication Number Publication Date
DE3321375A1 DE3321375A1 (de) 1983-12-22
DE3321375C2 true DE3321375C2 (de) 1987-04-02

Family

ID=14331724

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19833321375 Expired DE3321375C2 (de) 1982-06-14 1983-06-14 Verfahren und Vorrichtung zur Messung von Oberflächenfehlstellen an Metallen

Country Status (2)

Country Link
JP (1) JPS58218644A (enrdf_load_stackoverflow)
DE (1) DE3321375C2 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022213259A1 (de) * 2022-12-08 2024-06-13 Zf Friedrichshafen Ag Prüfstand zum Erfassen von Wirbelstromverlusten in einem permanentmagnetischen Probenkörper

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4492115A (en) * 1984-04-11 1985-01-08 Pa Incorporated Method and apparatus for measuring defects in ferromagnetic tubing
JPS61104250A (ja) * 1984-10-26 1986-05-22 Kawasaki Steel Corp 熱間渦流探傷装置
JPH0711508B2 (ja) * 1987-03-10 1995-02-08 住友金属工業株式会社 漏洩磁束探傷方法
JPH0648262B2 (ja) * 1987-04-07 1994-06-22 日本鋼管株式会社 磁粉探傷装置
DE3937261C2 (de) * 1989-11-09 1996-04-11 Foerster Inst Dr Friedrich Rotierkopf zum Abtasten von metallischem Prüfgut
DE9011477U1 (de) * 1990-08-07 1990-12-20 Nukem GmbH, 63755 Alzenau Anordnung zur zerstörungsfreien Werkstoffprüfung
DE9011478U1 (de) * 1990-08-07 1990-12-20 Nukem GmbH, 63755 Alzenau Anordnung zur zerstörungsfreien Werkstoffprüfung
RU2176317C1 (ru) * 2000-03-13 2001-11-27 Открытое акционерное общество Научно-производственное предприятие Научно-исследовательский и проектно-конструкторский институт геофизических исследований геологоразведочных скважин Способ электромагнитной дефектоскопии стальных труб в скважинах
DE102008020194A1 (de) * 2008-04-16 2009-10-22 Institut Dr. Foerster Gmbh & Co. Kg Verfahren und Vorrichtung zum Detektieren von oberflächennahen Defekten mittels Streuflussmessung
JP7007700B2 (ja) * 2017-03-30 2022-01-25 国立大学法人東海国立大学機構 磁気計測装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5667747A (en) * 1979-11-08 1981-06-08 Denshi Jiki Kogyo Kk Magnetic powder flaw detector for steel pipe
US4439730A (en) * 1981-05-08 1984-03-27 Amf Inc. Nondestructive inspection apparatus and method utilizing combined inspection signals obtained from orthogonal magnetic fields

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022213259A1 (de) * 2022-12-08 2024-06-13 Zf Friedrichshafen Ag Prüfstand zum Erfassen von Wirbelstromverlusten in einem permanentmagnetischen Probenkörper

Also Published As

Publication number Publication date
JPH0335624B2 (enrdf_load_stackoverflow) 1991-05-28
JPS58218644A (ja) 1983-12-19
DE3321375A1 (de) 1983-12-22

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee