SE435969B - Sett och anordning for pavisande av diskontinuiteter i ett material - Google Patents

Sett och anordning for pavisande av diskontinuiteter i ett material

Info

Publication number
SE435969B
SE435969B SE7904155A SE7904155A SE435969B SE 435969 B SE435969 B SE 435969B SE 7904155 A SE7904155 A SE 7904155A SE 7904155 A SE7904155 A SE 7904155A SE 435969 B SE435969 B SE 435969B
Authority
SE
Sweden
Prior art keywords
sensors
circular
web
material web
circular path
Prior art date
Application number
SE7904155A
Other languages
English (en)
Swedish (sv)
Other versions
SE7904155L (sv
Inventor
Karl-Gunnar Bergstrand
Original Assignee
Sandvik Bergstrand 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20338033&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SE435969(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sandvik Bergstrand Ab filed Critical Sandvik Bergstrand Ab
Priority to SE7904155A priority Critical patent/SE435969B/sv
Priority to US06/229,585 priority patent/US4451787A/en
Priority to EP80850071A priority patent/EP0019604B2/en
Priority to PCT/SE1980/000135 priority patent/WO1980002594A1/en
Priority to DE8080850071T priority patent/DE3067419D1/de
Priority to AU59885/80A priority patent/AU542650B2/en
Priority to JP50111580A priority patent/JPS56500509A/ja
Priority to AT80850071T priority patent/ATE7082T1/de
Publication of SE7904155L publication Critical patent/SE7904155L/
Priority to NO81810022A priority patent/NO154410C/no
Publication of SE435969B publication Critical patent/SE435969B/sv

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
    • G01N27/904—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 with two or more sensors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Electrochemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Golf Clubs (AREA)
SE7904155A 1979-05-01 1979-05-11 Sett och anordning for pavisande av diskontinuiteter i ett material SE435969B (sv)

Priority Applications (9)

Application Number Priority Date Filing Date Title
SE7904155A SE435969B (sv) 1979-05-11 1979-05-11 Sett och anordning for pavisande av diskontinuiteter i ett material
AT80850071T ATE7082T1 (de) 1979-05-11 1980-05-09 Verfahren und geraet zum feststellen von fehlstellen in materialien.
DE8080850071T DE3067419D1 (en) 1979-05-11 1980-05-09 Method and apparatus for detecting discontinuities in materials
EP80850071A EP0019604B2 (en) 1979-05-11 1980-05-09 Method and apparatus for detecting discontinuities in materials
PCT/SE1980/000135 WO1980002594A1 (en) 1979-05-11 1980-05-09 Method and apparatus for detecting discontinuities in a material
US06/229,585 US4451787A (en) 1979-05-11 1980-05-09 Method and apparatus to detect randomly distributed discontinuities in different directions in a longitudinally moving web using rotating probes in overlapped paths
AU59885/80A AU542650B2 (en) 1979-05-01 1980-05-09 Method and apparatus for detecting discontinuities in a material
JP50111580A JPS56500509A (2) 1979-05-11 1980-05-09
NO81810022A NO154410C (no) 1979-05-11 1981-01-06 Fremgangsmaate for aa oppdage diskontinuiteter i materialer.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7904155A SE435969B (sv) 1979-05-11 1979-05-11 Sett och anordning for pavisande av diskontinuiteter i ett material

Publications (2)

Publication Number Publication Date
SE7904155L SE7904155L (sv) 1980-11-12
SE435969B true SE435969B (sv) 1984-10-29

Family

ID=20338033

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7904155A SE435969B (sv) 1979-05-01 1979-05-11 Sett och anordning for pavisande av diskontinuiteter i ett material

Country Status (9)

Country Link
US (1) US4451787A (2)
EP (1) EP0019604B2 (2)
JP (1) JPS56500509A (2)
AT (1) ATE7082T1 (2)
AU (1) AU542650B2 (2)
DE (1) DE3067419D1 (2)
NO (1) NO154410C (2)
SE (1) SE435969B (2)
WO (1) WO1980002594A1 (2)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125968B (en) * 1982-08-19 1986-11-05 British Steel Corp Ultasonic testing of steel plates or tube
US4859940A (en) * 1987-09-09 1989-08-22 Westinghouse Electric Corp. Apparatus for detecting onset of slag entrainment in a molten metal stream
US4970638A (en) * 1988-10-31 1990-11-13 The United States Of America As Represented By The Secretary Of The Air Force Control of unknown systems via deconvolution
GB9105361D0 (en) * 1991-03-13 1991-04-24 British Steel Plc Non destructive testing
DK169956B1 (da) * 1992-03-23 1995-04-10 Force Inst Fremgangsmåde og apparat til detektion af magnetiske diskontinuiteter i et prøveemne af magnetisk materiale
US6603312B2 (en) * 2000-12-11 2003-08-05 Cbg Corporation Multi-frequency array induction tool
EP3961203B1 (en) * 2019-04-24 2022-11-30 JFE Steel Corporation Leakage magnetic flux flaw inspection device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1422190A (fr) * 1964-10-28 1965-12-24 Realisations Ultrasoniques Sa Appareil de contrôle de matière en feuilles au moyen d'ultra-sons
US3611120A (en) * 1970-02-24 1971-10-05 Forster F M O Eddy current testing systems with means to compensate for probe to workpiece spacing
DE2439662C3 (de) * 1974-08-19 1978-10-12 Graenges Oxeloesunds Jaernverk Ab, Oxeloesund (Schweden) Vorrichtung zum zerstörungsfreien Prüfen von metallischen Rohlingen auf Oberflächenfehler
DE2636246C2 (de) * 1976-08-12 1982-09-16 Brown Boveri Reaktor GmbH, 6800 Mannheim Verfahren zum Auffinden von Materialfehlern in der Wandung eines Reaktordruckbehälters

Also Published As

Publication number Publication date
ATE7082T1 (de) 1984-04-15
NO154410C (no) 1986-09-10
NO810022L (no) 1981-01-06
EP0019604B1 (en) 1984-04-11
EP0019604A1 (en) 1980-11-26
US4451787A (en) 1984-05-29
DE3067419D1 (en) 1984-05-17
AU542650B2 (en) 1985-02-28
WO1980002594A1 (en) 1980-11-27
JPS56500509A (2) 1981-04-16
EP0019604B2 (en) 1987-04-15
AU5988580A (en) 1981-01-15
SE7904155L (sv) 1980-11-12
NO154410B (no) 1986-06-02

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