NO154410C - Fremgangsmaate for aa oppdage diskontinuiteter i materialer. - Google Patents
Fremgangsmaate for aa oppdage diskontinuiteter i materialer.Info
- Publication number
- NO154410C NO154410C NO81810022A NO810022A NO154410C NO 154410 C NO154410 C NO 154410C NO 81810022 A NO81810022 A NO 81810022A NO 810022 A NO810022 A NO 810022A NO 154410 C NO154410 C NO 154410C
- Authority
- NO
- Norway
- Prior art keywords
- discontinuities
- materials
- circular
- material web
- path
- Prior art date
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)
- Electrochemistry (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pathology (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)
- Cephalosporin Compounds (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Golf Clubs (AREA)
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 NO810022L (no) | 1981-01-06 |
NO154410B NO154410B (no) | 1986-06-02 |
NO154410C true 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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4562737A (en) * | 1982-08-19 | 1986-01-07 | British Steel Corporation | Ultrasonic testing |
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 |
WO2020218301A1 (ja) * | 2019-04-24 | 2020-10-29 | Jfeスチール株式会社 | 漏洩磁束探傷装置 |
Family Cites Families (4)
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 |
-
1979
- 1979-05-11 SE SE7904155A patent/SE435969B/sv not_active IP Right Cessation
-
1980
- 1980-05-09 JP JP50111580A patent/JPS56500509A/ja active Pending
- 1980-05-09 EP EP80850071A patent/EP0019604B2/en not_active Expired
- 1980-05-09 AU AU59885/80A patent/AU542650B2/en not_active Ceased
- 1980-05-09 US US06/229,585 patent/US4451787A/en not_active Expired - Lifetime
- 1980-05-09 AT AT80850071T patent/ATE7082T1/de not_active IP Right Cessation
- 1980-05-09 DE DE8080850071T patent/DE3067419D1/de not_active Expired
- 1980-05-09 WO PCT/SE1980/000135 patent/WO1980002594A1/en unknown
-
1981
- 1981-01-06 NO NO81810022A patent/NO154410C/no unknown
Also Published As
Publication number | Publication date |
---|---|
EP0019604A1 (en) | 1980-11-26 |
AU542650B2 (en) | 1985-02-28 |
ATE7082T1 (de) | 1984-04-15 |
SE7904155L (sv) | 1980-11-12 |
WO1980002594A1 (en) | 1980-11-27 |
EP0019604B2 (en) | 1987-04-15 |
EP0019604B1 (en) | 1984-04-11 |
SE435969B (sv) | 1984-10-29 |
JPS56500509A (no) | 1981-04-16 |
AU5988580A (en) | 1981-01-15 |
NO810022L (no) | 1981-01-06 |
NO154410B (no) | 1986-06-02 |
US4451787A (en) | 1984-05-29 |
DE3067419D1 (en) | 1984-05-17 |
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