ATE7631T1 - Verfahren und apparat zum pruefen von metallbaendern. - Google Patents
Verfahren und apparat zum pruefen von metallbaendern.Info
- Publication number
- ATE7631T1 ATE7631T1 AT80900454T AT80900454T ATE7631T1 AT E7631 T1 ATE7631 T1 AT E7631T1 AT 80900454 T AT80900454 T AT 80900454T AT 80900454 T AT80900454 T AT 80900454T AT E7631 T1 ATE7631 T1 AT E7631T1
- Authority
- AT
- Austria
- Prior art keywords
- tape
- flux
- signal
- crack
- coil
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
- G01R33/1207—Testing individual magnetic storage devices, e.g. records carriers or digital storage elements
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Pathology (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Laminated Bodies (AREA)
- Organic Insulating Materials (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/013,657 US4270088A (en) | 1979-02-21 | 1979-02-21 | Method and apparatus for magnetically testing metal tapes |
EP80900454A EP0024083B1 (de) | 1979-02-21 | 1980-09-10 | Verfahren und apparat zum prüfen von metallbändern |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE7631T1 true ATE7631T1 (de) | 1984-06-15 |
Family
ID=21761053
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT80900454T ATE7631T1 (de) | 1979-02-21 | 1980-02-11 | Verfahren und apparat zum pruefen von metallbaendern. |
Country Status (9)
Country | Link |
---|---|
US (1) | US4270088A (de) |
EP (1) | EP0024083B1 (de) |
JP (1) | JPH0252216B2 (de) |
AT (1) | ATE7631T1 (de) |
AU (1) | AU525464B2 (de) |
CA (1) | CA1149461A (de) |
DE (1) | DE3067910D1 (de) |
IN (1) | IN153755B (de) |
WO (1) | WO1980001843A1 (de) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57179739A (en) * | 1981-04-30 | 1982-11-05 | Toyo Seikan Kaisha Ltd | Method and device for detecting defective blanking with press |
JPS5842902A (ja) * | 1981-09-08 | 1983-03-12 | Toyo Seikan Kaisha Ltd | プレスの打抜き不良検出装置 |
US4503393A (en) * | 1981-10-05 | 1985-03-05 | Exxon Production Research Co. | Method and apparatus for detecting flaws in the threaded end of an elongate member using electromagnetic excitation and an automated scanning sensor |
US4573013A (en) * | 1982-03-29 | 1986-02-25 | The United States Of America As Represented By The Secretary Of Transportation | Magnetic inspection of reinforcing steel rods in prestressed concrete |
US4704580A (en) * | 1984-04-11 | 1987-11-03 | Pa Incorporated | Method and apparatus for measuring the depth of local defects in ferromagnetic elements |
US4715442A (en) * | 1984-04-11 | 1987-12-29 | Pa Incorporated | Apparatus for servicing tubular strings in subterranean wells |
US4710712A (en) * | 1984-04-11 | 1987-12-01 | Pa Incorporated | Method and apparatus for measuring defects in ferromagnetic elements |
US4578642A (en) * | 1984-04-11 | 1986-03-25 | Pa Incorporated | Method and apparatus for measuring velocity of ferromagnetic tubing |
US4636727A (en) * | 1984-04-11 | 1987-01-13 | Pa Incorporated | Method and apparatus for detecting the location of defects in tubular sections moving past a well head |
US4792756A (en) * | 1984-04-11 | 1988-12-20 | Pa Incorporated | Method and apparatus for measuring axially extending defects in ferromagnetic elements |
US4629991A (en) * | 1984-04-11 | 1986-12-16 | Pa Incorporated | Methods and apparatus for detecting tubular defects having a plurality of expandable arcuate segments |
GB2230341B (en) * | 1989-01-28 | 1994-01-05 | Cambridge Engineering Design L | Apparatus for and method of measuring magnetic flux density |
DE4022739A1 (de) * | 1990-07-17 | 1992-01-23 | Gao Ges Automation Org | Vorrichtung zur pruefung von mit magnetischen eigenschaften ausgestatteten messobjekten |
US5434506A (en) * | 1992-11-09 | 1995-07-18 | The Babcock & Wilcox Company | Eddy current inspection with stationary magnetic fields and scanning sensor arrays |
US5610518A (en) * | 1995-03-16 | 1997-03-11 | Eastman Kodak Company | Method and apparatus for detecting small magnetizable particles and flaws in nonmagnetic conductors |
US6271664B1 (en) * | 1997-04-03 | 2001-08-07 | Logue Sensor Co. | Polar coordinates sensor utilizing an integrated driver-resonator for increasing oscillatory signal build-up |
US6841988B1 (en) * | 1998-07-16 | 2005-01-11 | American Superconductor Corporation | Method for the determination of the critical current for a conductor including superconducting material, and an apparatus for performing the method |
US6633159B1 (en) | 1999-03-29 | 2003-10-14 | Otis Elevator Company | Method and apparatus for magnetic detection of degradation of jacketed elevator rope |
US6683581B2 (en) | 2000-12-29 | 2004-01-27 | Bellsouth Intellectual Property Corporation | Antenna alignment devices |
US11175262B2 (en) * | 2017-06-30 | 2021-11-16 | Compagnie Generale Des Etablissements Michelin | Method for inspection of polymeric material with ferrous reinforcement to determine presence of reinforcement joint or damage |
WO2020246130A1 (ja) * | 2019-06-05 | 2020-12-10 | 株式会社島津製作所 | ワイヤロープ検査システムおよびワイヤロープ検査方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2102452A (en) * | 1936-04-23 | 1937-12-14 | Magnetic Analysis Corp | Detection of flaws in magnetizable bodies |
US2639316A (en) * | 1949-01-24 | 1953-05-19 | Teledetector Inc | Railroad fissure detector car |
US2766425A (en) * | 1951-11-15 | 1956-10-09 | Teleweld Inc | Rail detector pickup and coil |
US2882488A (en) * | 1954-06-01 | 1959-04-14 | Tuboscope Company | Pipe inspection apparatus |
US2855564A (en) * | 1955-10-14 | 1958-10-07 | Emmett M Irwin | Magnetic testing apparatus and method |
US3328681A (en) * | 1966-03-14 | 1967-06-27 | American Mach & Foundry | Electromagnetic flow detection apparatus with velocity compensation |
US3710236A (en) * | 1970-11-30 | 1973-01-09 | Youngstown Sheet And Tube Co | Magnetic leakage field flaw detector utilizing partially overlapping hall probes |
-
1979
- 1979-02-21 US US06/013,657 patent/US4270088A/en not_active Expired - Lifetime
- 1979-11-13 CA CA000339763A patent/CA1149461A/en not_active Expired
-
1980
- 1980-02-11 JP JP55500568A patent/JPH0252216B2/ja not_active Expired - Lifetime
- 1980-02-11 DE DE8080900454T patent/DE3067910D1/de not_active Expired
- 1980-02-11 AT AT80900454T patent/ATE7631T1/de not_active IP Right Cessation
- 1980-02-11 WO PCT/US1980/000141 patent/WO1980001843A1/en active IP Right Grant
- 1980-02-18 AU AU55631/80A patent/AU525464B2/en not_active Ceased
- 1980-02-20 IN IN125/DEL/80A patent/IN153755B/en unknown
- 1980-09-10 EP EP80900454A patent/EP0024083B1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS56500192A (de) | 1981-02-19 |
AU525464B2 (en) | 1982-11-04 |
DE3067910D1 (en) | 1984-06-28 |
EP0024083A4 (de) | 1981-08-28 |
EP0024083B1 (de) | 1984-05-23 |
JPH0252216B2 (de) | 1990-11-09 |
AU5563180A (en) | 1980-08-28 |
CA1149461A (en) | 1983-07-05 |
WO1980001843A1 (en) | 1980-09-04 |
US4270088A (en) | 1981-05-26 |
EP0024083A1 (de) | 1981-02-25 |
IN153755B (de) | 1984-08-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
UEP | Publication of translation of european patent specification | ||
REN | Ceased due to non-payment of the annual fee |