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FR1147822A - Explorer device for detecting hidden defects in tubes and bars of ferromagnetic material - Google Patents

Explorer device for detecting hidden defects in tubes and bars of ferromagnetic material

Info

Publication number
FR1147822A
FR1147822A FR1147822DA FR1147822A FR 1147822 A FR1147822 A FR 1147822A FR 1147822D A FR1147822D A FR 1147822DA FR 1147822 A FR1147822 A FR 1147822A
Authority
FR
France
Prior art keywords
bars
tubes
ferromagnetic material
detecting hidden
hidden 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
Other languages
French (fr)
Inventor
Zdenek Frank
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
Application granted granted Critical
Publication of FR1147822A publication Critical patent/FR1147822A/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
    • G01N27/9006—Details, e.g. in the structure or functioning of sensors

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)
FR1147822D 1956-04-20 1956-04-20 Explorer device for detecting hidden defects in tubes and bars of ferromagnetic material Expired FR1147822A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1147822T 1956-04-20

Publications (1)

Publication Number Publication Date
FR1147822A true FR1147822A (en) 1957-11-29

Family

ID=9646113

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1147822D Expired FR1147822A (en) 1956-04-20 1956-04-20 Explorer device for detecting hidden defects in tubes and bars of ferromagnetic material

Country Status (1)

Country Link
FR (1) FR1147822A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202914A (en) * 1960-06-29 1965-08-24 American Mach & Foundry Apparatus for inspection of tubular ferromagnetic members using plural movable search shoes for identifying area depth and location of discontinuities
US3483466A (en) * 1967-11-03 1969-12-09 American Mach & Foundry Pipeline inspection apparatus for detection of longitudinal defects

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202914A (en) * 1960-06-29 1965-08-24 American Mach & Foundry Apparatus for inspection of tubular ferromagnetic members using plural movable search shoes for identifying area depth and location of discontinuities
US3483466A (en) * 1967-11-03 1969-12-09 American Mach & Foundry Pipeline inspection apparatus for detection of longitudinal defects

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