NO810022L - Fremgangsmaate for aa oppdage diskontinuiteter i materialer - Google Patents

Fremgangsmaate for aa oppdage diskontinuiteter i materialer

Info

Publication number
NO810022L
NO810022L NO810022A NO810022A NO810022L NO 810022 L NO810022 L NO 810022L NO 810022 A NO810022 A NO 810022A NO 810022 A NO810022 A NO 810022A NO 810022 L NO810022 L NO 810022L
Authority
NO
Norway
Prior art keywords
discontinuities
materials
circular
material web
path
Prior art date
Application number
NO810022A
Other languages
English (en)
Other versions
NO154410B (no
NO154410C (no
Inventor
Karl-Gunnar Bergstrand
Original Assignee
Bergstrand Kvalitetskontroll
Bergstrand Karl Gunnar
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=NO810022(L) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bergstrand Kvalitetskontroll, Bergstrand Karl Gunnar filed Critical Bergstrand Kvalitetskontroll
Publication of NO810022L publication Critical patent/NO810022L/no
Publication of NO154410B publication Critical patent/NO154410B/no
Publication of NO154410C publication Critical patent/NO154410C/no

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)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Golf Clubs (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
NO81810022A 1979-05-11 1981-01-06 Fremgangsmaate for aa oppdage diskontinuiteter i materialer. NO154410C (no)

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 (3)

Publication Number Publication Date
NO810022L true NO810022L (no) 1981-01-06
NO154410B NO154410B (no) 1986-06-02
NO154410C NO154410C (no) 1986-09-10

Family

ID=20338033

Family Applications (1)

Application Number Title Priority Date Filing Date
NO81810022A NO154410C (no) 1979-05-11 1981-01-06 Fremgangsmaate for aa oppdage diskontinuiteter i materialer.

Country Status (9)

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

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
JP6816848B1 (ja) * 2019-04-24 2021-01-20 Ｊｆｅスチール株式会社 漏洩磁束探傷装置

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
SE435969B (sv) 1984-10-29
AU542650B2 (en) 1985-02-28
EP0019604B1 (en) 1984-04-11
EP0019604A1 (en) 1980-11-26
NO154410B (no) 1986-06-02
US4451787A (en) 1984-05-29
JPS56500509A (no) 1981-04-16
ATE7082T1 (de) 1984-04-15
DE3067419D1 (en) 1984-05-17
NO154410C (no) 1986-09-10
SE7904155L (sv) 1980-11-12
EP0019604B2 (en) 1987-04-15
WO1980002594A1 (en) 1980-11-27
AU5988580A (en) 1981-01-15

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