WO2006113504A3 - Near fieldtm and combination near fieldtm - remote field electromagnetic testing (et) probes for inspecting ferromagnetic pipes and tubes such as those used in heat exchangers - Google Patents
Near fieldtm and combination near fieldtm - remote field electromagnetic testing (et) probes for inspecting ferromagnetic pipes and tubes such as those used in heat exchangers Download PDFInfo
- Publication number
- WO2006113504A3 WO2006113504A3 PCT/US2006/014206 US2006014206W WO2006113504A3 WO 2006113504 A3 WO2006113504 A3 WO 2006113504A3 US 2006014206 W US2006014206 W US 2006014206W WO 2006113504 A3 WO2006113504 A3 WO 2006113504A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fieldtm
- tubes
- remote field
- probes
- combination
- 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
-
- 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
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)
Abstract
Ferromagnetic pipes and tubes are inspected for flaws by inserting probes having a near field sensor comprising at least one send coil (50) and at least one receive coil (52) which are located directly adjacent one another. According to various configurations, the send and receive coils (50,52) are of the same or different diameters or are positioned axially adjacent one another. Configurations of the near field sensor include arrangements wherein there are pluralities of send coils (50) as well as pluralities of receive coils (52). The near field sensor is in one embodiment in combination with remote field sensor coils and in another embodiment in combination with a remote field sensor and a remote field receive coil.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06758357A EP1877767A2 (en) | 2005-04-14 | 2006-04-14 | Near fieldtm and combination near fieldtm - remote field electromagnetic testing (et) probes for inspecting ferromagnetic pipes and tubes such as those used in heat exchangers |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US67110605P | 2005-04-14 | 2005-04-14 | |
US60/671,106 | 2005-04-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2006113504A2 WO2006113504A2 (en) | 2006-10-26 |
WO2006113504A3 true WO2006113504A3 (en) | 2007-03-08 |
Family
ID=37115754
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2006/014206 WO2006113504A2 (en) | 2005-04-14 | 2006-04-14 | Near fieldtm and combination near fieldtm - remote field electromagnetic testing (et) probes for inspecting ferromagnetic pipes and tubes such as those used in heat exchangers |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1877767A2 (en) |
WO (1) | WO2006113504A2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0813914D0 (en) * | 2008-07-30 | 2008-09-03 | Innospection Holdings Ltd | Inspection apparatus and method |
GB2475314B8 (en) | 2009-11-16 | 2013-09-25 | Innospection Group Ltd | Remote environment inspection apparatus and method |
JP5800696B2 (en) * | 2011-11-30 | 2015-10-28 | 日立交通テクノロジー株式会社 | Remote field eddy current flaw detection system and remote field eddy current flaw detection method |
GB2537124B (en) | 2015-04-07 | 2018-09-05 | Innospection Group Ltd | In-line inspection tool |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3875502A (en) * | 1973-05-24 | 1975-04-01 | Foerster Inst Dr Friedrich | Coil arrangement and circuit for eddy current testing |
US4079312A (en) * | 1976-08-17 | 1978-03-14 | Allegheny Ludlum Industries, Inc. | Continuous testing method and apparatus for determining the magnetic characteristics of a strip of moving material, including flux inducing and pick-up device therefor |
US4608534A (en) * | 1982-10-22 | 1986-08-26 | Canadian Patents & Development Limited | Eddy current probe for detecting localized defects in cylindrical components |
US5623203A (en) * | 1994-08-01 | 1997-04-22 | Tokyo Gas Co., Ltd. | Remote field flaw sensor including an energizing coil, first and second receiving coil groups oriented perpendicular and a third receiving coil oriented parallel to pipe |
-
2006
- 2006-04-14 EP EP06758357A patent/EP1877767A2/en not_active Withdrawn
- 2006-04-14 WO PCT/US2006/014206 patent/WO2006113504A2/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3875502A (en) * | 1973-05-24 | 1975-04-01 | Foerster Inst Dr Friedrich | Coil arrangement and circuit for eddy current testing |
US4079312A (en) * | 1976-08-17 | 1978-03-14 | Allegheny Ludlum Industries, Inc. | Continuous testing method and apparatus for determining the magnetic characteristics of a strip of moving material, including flux inducing and pick-up device therefor |
US4608534A (en) * | 1982-10-22 | 1986-08-26 | Canadian Patents & Development Limited | Eddy current probe for detecting localized defects in cylindrical components |
US5623203A (en) * | 1994-08-01 | 1997-04-22 | Tokyo Gas Co., Ltd. | Remote field flaw sensor including an energizing coil, first and second receiving coil groups oriented perpendicular and a third receiving coil oriented parallel to pipe |
Also Published As
Publication number | Publication date |
---|---|
EP1877767A2 (en) | 2008-01-16 |
WO2006113504A2 (en) | 2006-10-26 |
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