AU2001285910A1 - Detecting an anomaly in an object of electrically conductive material - Google Patents
Detecting an anomaly in an object of electrically conductive materialInfo
- Publication number
- AU2001285910A1 AU2001285910A1 AU2001285910A AU8591001A AU2001285910A1 AU 2001285910 A1 AU2001285910 A1 AU 2001285910A1 AU 2001285910 A AU2001285910 A AU 2001285910A AU 8591001 A AU8591001 A AU 8591001A AU 2001285910 A1 AU2001285910 A1 AU 2001285910A1
- Authority
- AU
- Australia
- Prior art keywords
- anomaly
- inspection point
- selecting
- detecting
- probe
- 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.)
- Abandoned
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
- G01N27/9013—Arrangements for scanning
- G01N27/902—Arrangements for scanning by moving the sensors
Abstract
Detecting the presence of an anomaly in or near an object using a probe comprises:a) selecting a set of points on the near surface which are to be inspected, and selecting a first direction and a second direction;b) selecting a first inspection point from the set;c) positioning the probe at the selected inspection point in the first direction, inducing eddy currents in the object and determining a characteristic value of the electromagnetic field;d) positioning the probe in the second direction at the selected inspection point, inducing eddy currents in the object and determining a characteristic value of the electromagnetic field;e) selecting a next inspection point from the set and repeating steps c) and d) until all inspection points have had their turn; andf) inferring that an anomaly is present at an inspection point if a combination of the characteristic values in the first and second direction deviates significantly from a norm.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00307299 | 2000-08-24 | ||
EP00307299 | 2000-08-24 | ||
PCT/EP2001/009891 WO2002016923A1 (en) | 2000-08-24 | 2001-08-23 | Detecting an anomaly in an object of electrically conductive material |
Publications (1)
Publication Number | Publication Date |
---|---|
AU2001285910A1 true AU2001285910A1 (en) | 2002-03-04 |
Family
ID=8173219
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2001285910A Abandoned AU2001285910A1 (en) | 2000-08-24 | 2001-08-23 | Detecting an anomaly in an object of electrically conductive material |
Country Status (9)
Country | Link |
---|---|
US (1) | US6538435B2 (en) |
EP (1) | EP1311843B1 (en) |
JP (1) | JP4903349B2 (en) |
AT (1) | ATE499604T1 (en) |
AU (1) | AU2001285910A1 (en) |
CA (1) | CA2420340A1 (en) |
DE (1) | DE60144092D1 (en) |
NO (1) | NO20030816L (en) |
WO (1) | WO2002016923A1 (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6570379B2 (en) * | 2000-08-24 | 2003-05-27 | Shell Oil Company | Method for inspecting an object of electrically conducting material |
US6707296B2 (en) * | 2000-08-24 | 2004-03-16 | Shell Oil Company | Method for detecting cracks in electrically conducting material |
EP2064515B1 (en) * | 2006-09-21 | 2014-11-26 | Shell Internationale Research Maatschappij B.V. | Inspection of an electrically conductive object using eddy currents |
CA2566933C (en) | 2006-10-17 | 2013-09-24 | Athena Industrial Technologies Inc. | Inspection apparatus and method |
EP2056104B1 (en) * | 2007-10-29 | 2017-12-27 | General Electric Technology GmbH | Method for determining geometrical characteristics of an anomaly in a test object and measuring apparatus for carrying out the method |
JP5513821B2 (en) * | 2009-09-17 | 2014-06-04 | 株式会社荏原製作所 | Eddy current sensor, polishing apparatus, plating apparatus, polishing method, plating method |
EP2383056B1 (en) * | 2010-04-28 | 2016-11-30 | Nemak Dillingen GmbH | Method and apparatus for a non contact metal sensing device |
US8483993B2 (en) | 2010-10-12 | 2013-07-09 | Chevron U.S.A. Inc. | Accurately accounting for sizing uncertainty in inspection |
EP2746795B1 (en) * | 2012-12-20 | 2015-10-07 | Alstom Technology Ltd | Device and method for measuring the magnetic field in the air-gap of an electric machine |
CA2945425C (en) * | 2014-04-14 | 2023-03-14 | Eddyfi Ndt Inc. | Eddy current array probe with independent transmitters |
DE102014212499A1 (en) * | 2014-06-27 | 2015-12-31 | Institut Dr. Foerster Gmbh & Co. Kg | Method and apparatus for leakage flux testing |
US9880130B2 (en) | 2015-12-15 | 2018-01-30 | Eddyfi Ndt Inc. | Pulsed eddy current testing with dual-purpose coils |
GB202018028D0 (en) * | 2020-11-17 | 2020-12-30 | Rolls Royce Plc | Method of inspecting a component |
CN114354740B (en) * | 2022-03-09 | 2022-05-31 | 成都熊谷油气科技有限公司 | Pipeline detection system |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59225348A (en) | 1983-06-07 | 1984-12-18 | Kawasaki Steel Corp | Magnetic flaw detecting apparatus |
US5485084A (en) * | 1993-05-10 | 1996-01-16 | The Boeing Company | Apparatus and method for detecting structural cracks using a movable detector |
US5461313A (en) | 1993-06-21 | 1995-10-24 | Atlantic Richfield Company | Method of detecting cracks by measuring eddy current decay rate |
JP3387640B2 (en) | 1994-07-20 | 2003-03-17 | 株式会社タツノ・メカトロニクス | Refueling device |
JPH08334498A (en) | 1995-06-08 | 1996-12-17 | Ishikawajima Harima Heavy Ind Co Ltd | Method and device for omnidirectional eddy current testing |
US6291992B1 (en) * | 1996-07-12 | 2001-09-18 | Shell Oil Company | Eddy current inspection technique |
US5801532A (en) | 1996-07-30 | 1998-09-01 | General Electric Company | Hand-holdable eddy-current probe |
JPH10197493A (en) * | 1997-01-14 | 1998-07-31 | Mitsubishi Heavy Ind Ltd | Eddy-current flow detecting probe |
JPH11248684A (en) * | 1998-03-03 | 1999-09-17 | Daido Steel Co Ltd | Eddy current test equipment |
US6570379B2 (en) * | 2000-08-24 | 2003-05-27 | Shell Oil Company | Method for inspecting an object of electrically conducting material |
US6593737B2 (en) * | 2000-08-24 | 2003-07-15 | Shell Oil Company | Method for measuring the wall thickness of an electrically conductive object |
US6707296B2 (en) * | 2000-08-24 | 2004-03-16 | Shell Oil Company | Method for detecting cracks in electrically conducting material |
-
2001
- 2001-08-17 US US09/931,979 patent/US6538435B2/en not_active Expired - Lifetime
- 2001-08-23 WO PCT/EP2001/009891 patent/WO2002016923A1/en active Application Filing
- 2001-08-23 EP EP01965222A patent/EP1311843B1/en not_active Expired - Lifetime
- 2001-08-23 CA CA002420340A patent/CA2420340A1/en not_active Abandoned
- 2001-08-23 AT AT01965222T patent/ATE499604T1/en not_active IP Right Cessation
- 2001-08-23 DE DE60144092T patent/DE60144092D1/en not_active Expired - Lifetime
- 2001-08-23 JP JP2002521968A patent/JP4903349B2/en not_active Expired - Fee Related
- 2001-08-23 AU AU2001285910A patent/AU2001285910A1/en not_active Abandoned
-
2003
- 2003-02-21 NO NO20030816A patent/NO20030816L/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DE60144092D1 (en) | 2011-04-07 |
US6538435B2 (en) | 2003-03-25 |
JP4903349B2 (en) | 2012-03-28 |
JP2004507736A (en) | 2004-03-11 |
US20020097045A1 (en) | 2002-07-25 |
CA2420340A1 (en) | 2002-02-28 |
EP1311843B1 (en) | 2011-02-23 |
NO20030816L (en) | 2003-04-15 |
WO2002016923A1 (en) | 2002-02-28 |
EP1311843A1 (en) | 2003-05-21 |
ATE499604T1 (en) | 2011-03-15 |
NO20030816D0 (en) | 2003-02-21 |
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