SE372341B - - Google Patents

Info

Publication number
SE372341B
SE372341B SE7308786A SE7308786A SE372341B SE 372341 B SE372341 B SE 372341B SE 7308786 A SE7308786 A SE 7308786A SE 7308786 A SE7308786 A SE 7308786A SE 372341 B SE372341 B SE 372341B
Authority
SE
Sweden
Application number
SE7308786A
Inventor
B Toernblom
Original Assignee
Asea Ab
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 Asea Ab filed Critical Asea Ab
Priority to SE7308786A priority Critical patent/SE372341B/xx
Priority to DE19742427959 priority patent/DE2427959A1/de
Priority to US05/480,424 priority patent/US3944911A/en
Priority to JP49070095A priority patent/JPS5037489A/ja
Publication of SE372341B publication Critical patent/SE372341B/xx

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
    • G01N27/9013—Arrangements for scanning

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)
SE7308786A 1973-06-21 1973-06-21 SE372341B (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE7308786A SE372341B (fr) 1973-06-21 1973-06-21
DE19742427959 DE2427959A1 (de) 1973-06-21 1974-06-10 Anordnung zur pruefung von metallischen koerpern
US05/480,424 US3944911A (en) 1973-06-21 1974-06-18 Apparatus for magnetically detecting faults in metal bodies utilizing a multiphase generator to generate a rotating field in the body
JP49070095A JPS5037489A (fr) 1973-06-21 1974-06-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7308786A SE372341B (fr) 1973-06-21 1973-06-21

Publications (1)

Publication Number Publication Date
SE372341B true SE372341B (fr) 1974-12-16

Family

ID=20317855

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7308786A SE372341B (fr) 1973-06-21 1973-06-21

Country Status (4)

Country Link
US (1) US3944911A (fr)
JP (1) JPS5037489A (fr)
DE (1) DE2427959A1 (fr)
SE (1) SE372341B (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2915535A1 (de) * 1978-04-28 1979-11-08 N Proizv Ob Energia Verfahren und einrichtung zur zerstoerungsfreien pruefung von rohrleitungen
CA1122656A (fr) * 1980-09-22 1982-04-27 Henry M. O'connor Appareil triphase a courants de foucault
DE3112991C2 (de) * 1981-04-01 1985-12-12 Hoesch Ag, 4600 Dortmund Rundschleifmaschine zum kontrollierten Abschleifen von Rissen an Walzen
US4481471A (en) * 1981-08-14 1984-11-06 Westinghouse Electric Corp. Method and apparatus for the detection of anomalies in rotating members
US4818935A (en) * 1985-07-03 1989-04-04 Nippon Steel Corporation Method and apparatus for non-destructively detecting defects in metal materials by using rotating magnetic fields generated by multiphase ac current
US4926928A (en) * 1985-07-29 1990-05-22 Essex Group, Inc. Protective device of restraining rod produced in continuous casting and rolling process
US4785243A (en) * 1987-01-29 1988-11-15 Ltv Steel Company Electronically scanned eddy current flaw inspection
US4808927A (en) * 1987-02-19 1989-02-28 Atomic Energy Of Canada Limited Circumferentially compensating eddy current probe with alternately polarized receiver coil
FR2679658A1 (fr) * 1991-07-26 1993-01-29 Siderurgie Fse Inst Rech Dispositif statique de controle non destructif par courants de foucault de produits metalliques longs defilant a grande vitesse par creation d'un champ tournant axial.
US5619136A (en) * 1992-02-11 1997-04-08 Silverwing, Limited Detection of discontinuities below the surface of magnetizable material using differentially coupled sensors to detect magnetic flux leakage
RO111306B (ro) * 1994-12-14 1996-08-30 Inst De Fizica Tehnica Traductor pentru controlul produselor metalurgice, cilindrice, conductoare
US6039848A (en) * 1995-07-10 2000-03-21 Cvc Products, Inc. Ultra-high vacuum apparatus and method for high productivity physical vapor deposition.
CN101231267B (zh) * 2008-01-31 2010-12-22 华南理工大学 一种多相涡流检测系统

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE742535C (de) * 1940-10-17 1943-12-06 Ernst Heinkel Flugzeugwerke G Anwendung magnetischer Drehfelder bei magnet-induktiven Pruefverfahren zum Nachweis von Laengs- und Querrissen, vorzugsweise bei laengeren Halbzeugen und Vorrichtung zur Erzeugung solcher Drehfelder
US2467306A (en) * 1943-09-08 1949-04-12 Sperry Prod Inc Flaw detector for tubing and the like
DE847661C (de) * 1943-11-14 1952-08-25 Ernst Heinkel Ag Magnet-induktives Pruefverfahren zur Feststellung von Fehlern im Innern von Stangen

Also Published As

Publication number Publication date
JPS5037489A (fr) 1975-04-08
DE2427959A1 (de) 1975-01-16
US3944911A (en) 1976-03-16

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