NL6903584A - - Google Patents

Info

Publication number
NL6903584A
NL6903584A NL6903584A NL6903584A NL6903584A NL 6903584 A NL6903584 A NL 6903584A NL 6903584 A NL6903584 A NL 6903584A NL 6903584 A NL6903584 A NL 6903584A NL 6903584 A NL6903584 A NL 6903584A
Authority
NL
Netherlands
Application number
NL6903584A
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 filed Critical
Publication of NL6903584A publication Critical patent/NL6903584A/xx

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82Investigating 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)
  • Measuring Magnetic Variables (AREA)
NL6903584A 1968-03-13 1969-03-07 NL6903584A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB02306/68A GB1261346A (en) 1968-03-13 1968-03-13 Improvements in or relating to the detection of magnetic discontinuities

Publications (1)

Publication Number Publication Date
NL6903584A true NL6903584A (xx) 1969-09-16

Family

ID=10002089

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6903584A NL6903584A (xx) 1968-03-13 1969-03-07

Country Status (5)

Country Link
US (1) US3609530A (xx)
DE (1) DE1912399A1 (xx)
FR (1) FR2003787A1 (xx)
GB (1) GB1261346A (xx)
NL (1) NL6903584A (xx)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2041553C3 (de) * 1970-08-21 1974-07-25 Krauss-Maffei Ag, 8000 Muenchen Anordnung für einen in einem Abstand von einer Schiene schwebend geführten Elektromagneten
US3710236A (en) * 1970-11-30 1973-01-09 Youngstown Sheet And Tube Co Magnetic leakage field flaw detector utilizing partially overlapping hall probes
JPS5177378A (en) * 1974-12-27 1976-07-05 Nippon Kokan Kk Denjudoshikikenshutsusochi
CA1038037A (en) * 1976-05-06 1978-09-05 Noranda Mines Limited Magnetic testing device for detecting defects in elongated objects
DE3122376A1 (de) * 1981-06-05 1982-12-23 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zur erfassung der drehzahl von rotierenden teilen
JPS59501919A (ja) * 1982-10-22 1984-11-15 ゲ−ア−ペ− ゲゼルシヤフト フユ−ア アウスヴエルトンゲン ウント パテンテエ ア−ゲ− 磁気検査ユニット
IT1194275B (it) * 1983-06-15 1988-09-14 Cise Spa Misuratore di spessori elevati "senza contatto" per materiali metallici ad di sopra della temperatura di curie
US4792756A (en) * 1984-04-11 1988-12-20 Pa Incorporated Method and apparatus for measuring axially extending defects in ferromagnetic elements
US4629991A (en) * 1984-04-11 1986-12-16 Pa Incorporated Methods and apparatus for detecting tubular defects having a plurality of expandable arcuate segments
US4710712A (en) * 1984-04-11 1987-12-01 Pa Incorporated Method and apparatus for measuring defects in ferromagnetic elements
US4636727A (en) * 1984-04-11 1987-01-13 Pa Incorporated Method and apparatus for detecting the location of defects in tubular sections moving past a well head
US4578642A (en) * 1984-04-11 1986-03-25 Pa Incorporated Method and apparatus for measuring velocity of ferromagnetic tubing
US4715442A (en) * 1984-04-11 1987-12-29 Pa Incorporated Apparatus for servicing tubular strings in subterranean wells
US4704580A (en) * 1984-04-11 1987-11-03 Pa Incorporated Method and apparatus for measuring the depth of local defects in ferromagnetic elements
FR2577350A1 (fr) * 1984-12-20 1986-08-14 Nukem Gmbh Dispositif de commande pour la compensation de la tension ohmique zero de generateurs de hall, comportant un diviseur de tension dont la sortie est reliee avec une des electrodes de hall
EP0193168A3 (en) * 1985-02-25 1989-01-25 Kubota Limited Method of inspecting carburization and probe therefor
GB8606564D0 (en) * 1986-03-17 1986-04-23 Atomic Energy Authority Uk Magnetic discontinuity detection
US4945306A (en) * 1988-10-25 1990-07-31 Atlantic Richfield Coil and Hall device circuit for sensing magnetic fields
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.
DE102008029525A1 (de) * 2008-06-21 2009-12-24 Rohmann, Jürgen Vorrichtung zur Detektion von Schädigungen eines Prüfkörpers aus ferromagnetischem Material
CN105842635B (zh) * 2016-03-21 2018-10-12 北京工业大学 基于线性外推的微磁探头励磁反馈控制方法

Also Published As

Publication number Publication date
FR2003787A1 (xx) 1969-11-14
GB1261346A (en) 1972-01-26
US3609530A (en) 1971-09-28
DE1912399A1 (de) 1969-10-09

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