DE3067419D1 - Method and apparatus for detecting discontinuities in materials - Google Patents
Method and apparatus for detecting discontinuities in materialsInfo
- Publication number
- DE3067419D1 DE3067419D1 DE8080850071T DE3067419T DE3067419D1 DE 3067419 D1 DE3067419 D1 DE 3067419D1 DE 8080850071 T DE8080850071 T DE 8080850071T DE 3067419 T DE3067419 T DE 3067419T DE 3067419 D1 DE3067419 D1 DE 3067419D1
- Authority
- DE
- Germany
- Prior art keywords
- circular
- materials
- material web
- discontinuities
- path
- 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
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 (1)
Publication Number | Publication Date |
---|---|
DE3067419D1 true DE3067419D1 (en) | 1984-05-17 |
Family
ID=20338033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8080850071T Expired DE3067419D1 (en) | 1979-05-11 | 1980-05-09 | Method and apparatus for detecting discontinuities in materials |
Country Status (9)
Country | Link |
---|---|
US (1) | US4451787A (de) |
EP (1) | EP0019604B2 (de) |
JP (1) | JPS56500509A (de) |
AT (1) | ATE7082T1 (de) |
AU (1) | AU542650B2 (de) |
DE (1) | DE3067419D1 (de) |
NO (1) | NO154410C (de) |
SE (1) | SE435969B (de) |
WO (1) | WO1980002594A1 (de) |
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/de 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 (de) | 1980-11-26 |
AU542650B2 (en) | 1985-02-28 |
ATE7082T1 (de) | 1984-04-15 |
NO154410C (no) | 1986-09-10 |
SE7904155L (sv) | 1980-11-12 |
WO1980002594A1 (en) | 1980-11-27 |
EP0019604B2 (de) | 1987-04-15 |
EP0019604B1 (de) | 1984-04-11 |
SE435969B (sv) | 1984-10-29 |
JPS56500509A (de) | 1981-04-16 |
AU5988580A (en) | 1981-01-15 |
NO810022L (no) | 1981-01-06 |
NO154410B (no) | 1986-06-02 |
US4451787A (en) | 1984-05-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB2239094B (en) | Detection of chemicals | |
ATE43516T1 (de) | Verfahren und vorrichtung fuer das separieren von medien. | |
SE8006088L (sv) | Ett flertal laserkellor innefattande svepgranskningsanordning | |
DE3067686D1 (en) | Inspection device and vehicle for ultrasonically inspecting pipelines | |
JPS56127538A (en) | Device for deflecting moving web material | |
DE3067419D1 (en) | Method and apparatus for detecting discontinuities in materials | |
SE8504912L (sv) | Arrangemang for ytavsokning av ett provobjekt | |
GB1555236A (en) | Light detection apparatus for optically examining a surface linearly scanned by a light spot | |
DE58906256D1 (de) | Verfahren zum Betrieb eines Elektronenstrahlmessgerätes. | |
DE3173447D1 (en) | Signal processing device for electron beam measuring apparatus | |
ATE44177T1 (de) | Abtastsender zum optischen pruefen von transparenten gegenstaenden. | |
ES8601475A1 (es) | Sistema ultrasonico de inspeccion de materiales cerca de la superficie de los mismos | |
GB2044459B (en) | Velocity correction arrangement for non-destructive testing apparatus | |
EP0251648A3 (de) | Anordnung zur Bestimmung des geometrischen Mittelpunktes einer symmetrischen Bohrung | |
BE878632A (fr) | Appareil de detection d'une matiere filamentaire continue | |
GB2122349B (en) | Ultrasonic test apparatus for non-destructive material testing | |
JPS5611344A (en) | Measuring apparatus for surface flaw | |
ES8305929A1 (es) | "procedimiento para examinar bandas de material transparentes, en particular vidrio plano en cuanto a defectos incluidos en la banda". | |
JPS56141555A (en) | Ultrasonic flaw detecting method | |
EP0062191A3 (en) | Method and apparatus for measuring the position or displacement of a body | |
ATE12125T1 (de) | Verfahren und vorrichtung zum mechanischen konditionieren von textilmaterialien. | |
FI935781A (fi) | Menetelmä ja laite liikkuvan paperirainan formaation ja/tai kuituorientaation jatkuvaksi määrittämiseksi | |
JPS5499690A (en) | Jig for ultrasonic wave flaw detecting inspection | |
SE8402170L (sv) | Sett och anordning for faststellande av en dimension hos ett foremal | |
JPS5229790A (en) | Self-running flaw detection apparatus having copying device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8327 | Change in the person/name/address of the patent owner |
Owner name: AKTIEBOLAGET SANDVIK BERGSTRAND, OESTERSUND, SE |
|
8328 | Change in the person/name/address of the agent |
Free format text: WEBER, D., DIPL.-CHEM. DR.RER.NAT. SEIFFERT, K., DIPL.-PHYS., PAT.-ANW., 6200 WIESBADEN |
|
8366 | Restricted maintained after opposition proceedings | ||
8339 | Ceased/non-payment of the annual fee |