AU2001282116A1 - Inspecting an object of electrically conducting material - Google Patents

Inspecting an object of electrically conducting material

Info

Publication number
AU2001282116A1
AU2001282116A1 AU2001282116A AU8211601A AU2001282116A1 AU 2001282116 A1 AU2001282116 A1 AU 2001282116A1 AU 2001282116 A AU2001282116 A AU 2001282116A AU 8211601 A AU8211601 A AU 8211601A AU 2001282116 A1 AU2001282116 A1 AU 2001282116A1
Authority
AU
Australia
Prior art keywords
inspection point
selecting
inspecting
anomaly
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
Application number
AU2001282116A
Inventor
Paulus Carolus Nicolaas Crouzen
Mark Theodoor Looijer
Johan Van Der Steen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Publication of AU2001282116A1 publication Critical patent/AU2001282116A1/en
Abandoned legal-status Critical Current

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

A method of inspecting an electrically conductive object so as to detect the presence of an anomaly using a probe comprising a transmitter coil and a receiver coil, which method comprises the steps of:(a) selecting a set of points on the near surface of the object that are to be inspected;(b) selecting a first inspection point from the set;(c) positioning the probe at the selected inspection point, inducing eddy currents in the object and determining a characteristic value, PHI, of the electromagnetic field generated by the eddy currents;(d) selecting a next inspection point from the set and repeating step (c) until all inspection points have had their turn; and(e) inferring that an anomaly is present at an inspection point if the characteristic value PHI differs significantly from a norm.
AU2001282116A 2000-08-24 2001-08-22 Inspecting an object of electrically conducting material Abandoned AU2001282116A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP00307297 2000-08-24
EP00307297 2000-08-24
PCT/EP2001/009707 WO2002016921A1 (en) 2000-08-24 2001-08-22 Inspecting an object of electrically conducting material

Publications (1)

Publication Number Publication Date
AU2001282116A1 true AU2001282116A1 (en) 2002-03-04

Family

ID=8173217

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001282116A Abandoned AU2001282116A1 (en) 2000-08-24 2001-08-22 Inspecting an object of electrically conducting material

Country Status (10)

Country Link
US (1) US6570379B2 (en)
EP (1) EP1311842B1 (en)
JP (1) JP2004507734A (en)
CN (1) CN1242263C (en)
AT (1) ATE518132T1 (en)
AU (1) AU2001282116A1 (en)
CA (1) CA2420304A1 (en)
NO (1) NO20030815L (en)
RU (1) RU2283488C2 (en)
WO (1) WO2002016921A1 (en)

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US6707296B2 (en) * 2000-08-24 2004-03-16 Shell Oil Company Method for detecting cracks in electrically conducting material
US6538435B2 (en) * 2000-08-24 2003-03-25 Shell Oil Company Method for detecting an anomaly in an object of electrically conductive material along first and second direction at inspection points
US6911826B2 (en) * 2001-06-12 2005-06-28 General Electric Company Pulsed eddy current sensor probes and inspection methods
CN1307401C (en) * 2002-02-26 2007-03-28 国际壳牌研究有限公司 Measurement method for determining a surface profile
FR2881826A1 (en) * 2005-02-04 2006-08-11 Commissariat Energie Atomique Transmission and reception printed circuit coils assembly producing method, involves receiving complex amplitude signal and selecting distance between axes of transmission coil and reception coil so as to maximize specific ratio
US7501814B2 (en) * 2006-09-07 2009-03-10 Southwest Research Institute Apparatus and method for second-layer through-bushing inspection of aircraft wing attachment fittings using electric current perturbation
DK2064413T3 (en) * 2006-09-21 2018-02-12 Tüv Rheinland Sonovation Holding B V DEVICE AND PROCEDURE FOR DETECTING AN ANOMALY IN A COLLECTION OF A FIRST AND SECOND ITEM
CA2566933C (en) * 2006-10-17 2013-09-24 Athena Industrial Technologies Inc. Inspection apparatus and method
GB2450112B (en) * 2007-06-12 2010-12-08 Ge Inspection Technologies Ltd Automatic lift-off compensation for pulsed eddy current inspection
EP2283031B1 (en) 2008-05-02 2017-04-12 Virginia Commonwealth University Lyme disease vaccine
NL2002921C2 (en) * 2009-05-25 2010-11-30 Ntgen Tech Dienst B V R A METHOD OR NON-DESTRUCTIVELY TESTING, A SYSTEM AND A COMPUTER PROGRAM PRODUCT.
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
RU2461819C1 (en) * 2011-03-22 2012-09-20 Учреждение Российской академии наук Институт машиноведения Уральского отделения РАН (ИМАШ УрО РАН) Method for nondestructive inspection of defects in articles made from electroconductive materials
RU2456589C1 (en) * 2011-03-23 2012-07-20 Закрытое Акционерное Общество "КОНСТАНТА" Method for eddy current-measurement of thickness of metal coatings
FR2985027B1 (en) * 2011-12-22 2014-02-28 Commissariat Energie Atomique METHOD FOR MANUFACTURING A HEAD OF CONTROL OF A NON-DESTRUCTIVE CONTROL SENSOR WITH CURRENT FOUCAULT
US9091664B2 (en) * 2012-06-07 2015-07-28 Thomas Krause Pulsed eddy current sensor for precision measurement at-large lift-offs on metallic surfaces
US9880130B2 (en) 2015-12-15 2018-01-30 Eddyfi Ndt Inc. Pulsed eddy current testing with dual-purpose coils
US11084984B2 (en) * 2016-06-10 2021-08-10 Neotechnology Llc Processes and systems for improvement of heavy crude oil using induction heating
CN106198368B (en) * 2016-06-30 2018-09-21 重庆交通大学 Inside concrete steel bar corrosion method for detecting position
US10139372B1 (en) 2017-05-19 2018-11-27 Saudi Arabian Oil Company Two-stage corrosion under insulation detection methodology and modular vehicle with dual locomotion sensory systems
US10401278B2 (en) 2017-06-07 2019-09-03 Saudi Arabian Oil Company Microwave horn antennas-based transducer system for CUI inspection without removing the insulation
CN109100415A (en) * 2018-09-03 2018-12-28 中国石油大学(北京) The non-destructive testing device of pipe insulating layer can be penetrated
US11112349B2 (en) * 2019-07-16 2021-09-07 Saudi Arabian Oil Company Metal loss determinations based on thermography machine learning approach for insulated structures
CN111337569A (en) * 2020-04-16 2020-06-26 中国科学院海洋研究所 Novel pulse near-field and far-field combined eddy current sensor
GB202018028D0 (en) * 2020-11-17 2020-12-30 Rolls Royce Plc Method of inspecting a component

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US3361960A (en) * 1964-07-09 1968-01-02 Atomic Energy Commission Usa Pulsed nondestructive eddy current testing device using shielded specimen encircling coils
US3826973A (en) * 1973-01-10 1974-07-30 Benson R Electromagnetic gradiometer
FR2570501B1 (en) * 1984-09-20 1987-12-18 Siderurgie Fse Inst Rech METHOD FOR THE DETECTION OF SURFACE FAULTS BY EDGE CURRENTS AND DEVICE IMPLEMENTING THIS METHOD
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JPS62134552A (en) * 1985-12-07 1987-06-17 Science & Tech Agency Apparatus for measuring depth of crack by eddy current flaw detection method
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US5485084A (en) 1993-05-10 1996-01-16 The Boeing Company Apparatus and method for detecting structural cracks using a movable detector
US5442285A (en) * 1994-02-28 1995-08-15 Westinghouse Electric Corporation NDE eddy current sensor for very high scan rate applications in an operating combustion turbine
US5602474A (en) 1995-06-06 1997-02-11 United Technologies Corporation Detecting cracks in non-uniform areas of metal parts including position correlation
JPH09281082A (en) * 1996-04-12 1997-10-31 Shimizu Corp Damage diagnosing apparatus for metal member
JP3276295B2 (en) * 1996-10-09 2002-04-22 三菱重工業株式会社 Eddy current flaw detector
US6037768A (en) * 1997-04-02 2000-03-14 Iowa State University Research Foundation, Inc. Pulsed eddy current inspections and the calibration and display of inspection results
JPH11326284A (en) * 1998-05-08 1999-11-26 Yonekura Seisakusho:Kk Method and apparatus for pulse eddy current examination
US6707296B2 (en) * 2000-08-24 2004-03-16 Shell Oil Company Method for detecting cracks in electrically conducting material
US6538435B2 (en) * 2000-08-24 2003-03-25 Shell Oil Company Method for detecting an anomaly in an object of electrically conductive material along first and second direction at inspection points
US6593737B2 (en) * 2000-08-24 2003-07-15 Shell Oil Company Method for measuring the wall thickness of an electrically conductive object

Also Published As

Publication number Publication date
CA2420304A1 (en) 2002-02-28
EP1311842B1 (en) 2011-07-27
CN1447918A (en) 2003-10-08
RU2283488C2 (en) 2006-09-10
NO20030815L (en) 2003-04-14
ATE518132T1 (en) 2011-08-15
JP2004507734A (en) 2004-03-11
US6570379B2 (en) 2003-05-27
EP1311842A1 (en) 2003-05-21
NO20030815D0 (en) 2003-02-21
CN1242263C (en) 2006-02-15
US20020093330A1 (en) 2002-07-18
WO2002016921A1 (en) 2002-02-28

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