IT1099116B - Apparecchiatura per la rilevazione a corrente dispersa di difetti sulla superficie esterna di materiale rotondo o cilindrico,elettricamente conduttore - Google Patents
Apparecchiatura per la rilevazione a corrente dispersa di difetti sulla superficie esterna di materiale rotondo o cilindrico,elettricamente conduttoreInfo
- Publication number
- IT1099116B IT1099116B IT27836/78A IT2783678A IT1099116B IT 1099116 B IT1099116 B IT 1099116B IT 27836/78 A IT27836/78 A IT 27836/78A IT 2783678 A IT2783678 A IT 2783678A IT 1099116 B IT1099116 B IT 1099116B
- Authority
- IT
- Italy
- Prior art keywords
- defects
- round
- electrically conductive
- current detection
- external surface
- Prior art date
Links
- 238000001514 detection method Methods 0.000 title 1
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
- G01N27/9013—Arrangements for scanning
-
- 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
- G01N27/9046—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 by analysing electrical signals
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11320177A JPS5447694A (en) | 1977-09-22 | 1977-09-22 | Surface flaw sensor block with marking means |
JP11320277A JPS5913701B2 (ja) | 1977-09-22 | 1977-09-22 | 断面外形が円形状の被検査材の外表面走査用センサブロツク |
JP11320077A JPS5447697A (en) | 1977-09-22 | 1977-09-22 | Method of detecting flaw by eddy current |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7827836A0 IT7827836A0 (it) | 1978-09-19 |
IT1099116B true IT1099116B (it) | 1985-09-18 |
Family
ID=27312454
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT27836/78A IT1099116B (it) | 1977-09-22 | 1978-09-19 | Apparecchiatura per la rilevazione a corrente dispersa di difetti sulla superficie esterna di materiale rotondo o cilindrico,elettricamente conduttore |
Country Status (4)
Country | Link |
---|---|
US (1) | US4247819A (it) |
DE (1) | DE2841165C3 (it) |
GB (1) | GB2007366B (it) |
IT (1) | IT1099116B (it) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4442403A (en) * | 1981-04-01 | 1984-04-10 | Pohler Carl Ludwig | Testing installation for pipes having an internal testing unit driven by the rotation of the pipe |
US4495587A (en) * | 1981-12-08 | 1985-01-22 | Bethlehem Steel Corporation | Automatic nondestructive roll defect inspection system |
DE3209006C2 (de) * | 1982-03-12 | 1985-11-21 | Institut Dr. Friedrich Förster Prüfgerätebau GmbH & Co KG, 7410 Reutlingen | Prüfeinrichtung für langgestrecktes Prüfgut |
US4543528A (en) * | 1982-09-30 | 1985-09-24 | Republic Steel Corporation | Flexible probe assembly for use in nondestructive testing of a convex workpiece surface |
US4864239A (en) * | 1983-12-05 | 1989-09-05 | General Electric Company | Cylindrical bearing inspection |
US4629991A (en) * | 1984-04-11 | 1986-12-16 | Pa Incorporated | Methods and apparatus for detecting tubular defects having a plurality of expandable arcuate segments |
US4792756A (en) * | 1984-04-11 | 1988-12-20 | Pa Incorporated | Method and apparatus for measuring axially extending defects in ferromagnetic elements |
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 |
US4715442A (en) * | 1984-04-11 | 1987-12-29 | Pa Incorporated | Apparatus for servicing tubular strings in subterranean wells |
US4492115A (en) * | 1984-04-11 | 1985-01-08 | Pa Incorporated | Method and apparatus for measuring defects in ferromagnetic tubing |
US4704580A (en) * | 1984-04-11 | 1987-11-03 | Pa Incorporated | Method and apparatus for measuring the depth of local defects in ferromagnetic elements |
US4710712A (en) * | 1984-04-11 | 1987-12-01 | Pa Incorporated | Method and apparatus for measuring defects in ferromagnetic elements |
EP0228177A3 (en) * | 1985-11-19 | 1988-11-02 | Electric Power Research Institute, Inc | Flexible eddy-current coil and coil array for nondestructive testing |
US5027662A (en) * | 1987-07-15 | 1991-07-02 | Micro Motion, Inc. | Accuracy mass flow meter with asymmetry and viscous damping compensation |
FR2626372B3 (fr) * | 1988-01-25 | 1990-01-19 | Unimetall Sa | Dispositif de detection par courants de foucault des defauts superficiels de produits longs a section circulaire |
EP0518635B1 (en) * | 1991-06-11 | 2003-05-21 | Newt Holdings Limited | Probe |
GB2292223B (en) * | 1991-12-20 | 1996-06-26 | Millstrong Ltd | Position measurement |
US7526964B2 (en) * | 2002-01-25 | 2009-05-05 | Jentek Sensors, Inc. | Applied and residual stress measurements using magnetic field sensors |
US6909988B2 (en) * | 2002-10-15 | 2005-06-21 | General Electric Company | Method for positioning defects in metal billets |
US20050007106A1 (en) * | 2003-05-23 | 2005-01-13 | Jentek Sensors, Inc. | Hybrid wound/etched winding constructs for scanning and monitoring |
US20040257072A1 (en) * | 2003-06-19 | 2004-12-23 | Rock Samson | Dual-sensitivity eddy current test probe |
EP1638754A1 (en) * | 2003-06-20 | 2006-03-29 | BATTENFELD GLOUCESTER ENGINEERING Co., Inc. | Process for reducing surface aberrations |
US7528598B2 (en) * | 2005-06-22 | 2009-05-05 | Jentek Sensors, Inc. | Fastener and fitting based sensing methods |
EP1952135A4 (en) * | 2005-11-03 | 2011-12-14 | Coastal Res Corp | CONVIVIAL FOUCAULT CURRENT NETWORK |
DE102008024394A1 (de) * | 2008-05-15 | 2009-12-03 | V&M Deutschland Gmbh | Verfahren zur zerstörungsfreien Prüfung von Rohren |
JP5791279B2 (ja) * | 2011-01-06 | 2015-10-07 | 三菱重工業株式会社 | 付着物計測装置及び付着物計測方法並びに付着物計測プログラム |
CN105806935B (zh) * | 2016-05-27 | 2024-03-12 | 三峡大学 | 一种大型金属圆管道焊缝缺陷快速检测装置 |
JP7269838B2 (ja) | 2019-09-02 | 2023-05-09 | 株式会社日立製作所 | 応力分布計測装置および応力分布計測方法 |
CN113256624A (zh) * | 2021-06-29 | 2021-08-13 | 中移(上海)信息通信科技有限公司 | 连铸圆坯缺陷检测方法、装置、电子设备及可读存储介质 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2353211A (en) * | 1940-05-13 | 1944-07-11 | Magnetic Analysis Corp | Electrical analysis |
US3271662A (en) * | 1962-08-22 | 1966-09-06 | Api Instr Company | Flaw detecting apparatus having multiple pick-up and exciting coils on the same side of the test piece |
US3244972A (en) * | 1964-03-25 | 1966-04-05 | United States Steel Corp | Test-coil positioning mechanism |
-
1978
- 1978-09-19 GB GB7837395A patent/GB2007366B/en not_active Expired
- 1978-09-19 IT IT27836/78A patent/IT1099116B/it active
- 1978-09-19 US US05/943,865 patent/US4247819A/en not_active Expired - Lifetime
- 1978-09-21 DE DE2841165A patent/DE2841165C3/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2007366B (en) | 1982-03-24 |
DE2841165C3 (de) | 1980-12-11 |
DE2841165A1 (de) | 1979-03-29 |
DE2841165B2 (de) | 1980-04-10 |
GB2007366A (en) | 1979-05-16 |
IT7827836A0 (it) | 1978-09-19 |
US4247819A (en) | 1981-01-27 |
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