DE69814351D1 - Gerät zum ermitteln der eigenschaften eines elektrisch leitfähigen objektes - Google Patents

Gerät zum ermitteln der eigenschaften eines elektrisch leitfähigen objektes

Info

Publication number
DE69814351D1
DE69814351D1 DE69814351T DE69814351T DE69814351D1 DE 69814351 D1 DE69814351 D1 DE 69814351D1 DE 69814351 T DE69814351 T DE 69814351T DE 69814351 T DE69814351 T DE 69814351T DE 69814351 D1 DE69814351 D1 DE 69814351D1
Authority
DE
Germany
Prior art keywords
properties
determining
electrically conductive
conductive object
electrically
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.)
Expired - Lifetime
Application number
DE69814351T
Other languages
English (en)
Other versions
DE69814351T2 (de
Inventor
Haan Otto De
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.)
ROENTGEN TECH DIENST BV
Original Assignee
ROENTGEN TECH DIENST 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 ROENTGEN TECH DIENST BV filed Critical ROENTGEN TECH DIENST BV
Application granted granted Critical
Publication of DE69814351D1 publication Critical patent/DE69814351D1/de
Publication of DE69814351T2 publication Critical patent/DE69814351T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01N27/9046—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)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
DE69814351T 1997-01-31 1998-02-02 Gerät zum ermitteln der eigenschaften eines elektrisch leitfähigen objektes Expired - Lifetime DE69814351T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL1005160 1997-01-31
NL1005160A NL1005160C2 (nl) 1997-01-31 1997-01-31 Inrichting voor het bepalen van eigenschappen van een elektrisch geleidend voorwerp.
PCT/NL1998/000065 WO1998034104A1 (en) 1997-01-31 1998-02-02 Apparatus for determining properties of an electrically conductive object

Publications (2)

Publication Number Publication Date
DE69814351D1 true DE69814351D1 (de) 2003-06-12
DE69814351T2 DE69814351T2 (de) 2004-03-25

Family

ID=19764328

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69814351T Expired - Lifetime DE69814351T2 (de) 1997-01-31 1998-02-02 Gerät zum ermitteln der eigenschaften eines elektrisch leitfähigen objektes

Country Status (8)

Country Link
US (1) US6275030B1 (de)
EP (1) EP0956503B1 (de)
AU (1) AU5884898A (de)
CA (1) CA2279598C (de)
DE (1) DE69814351T2 (de)
NL (1) NL1005160C2 (de)
NO (1) NO326709B1 (de)
WO (1) WO1998034104A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6593737B2 (en) * 2000-08-24 2003-07-15 Shell Oil Company Method for measuring the wall thickness of an electrically conductive object
CA2566933C (en) * 2006-10-17 2013-09-24 Athena Industrial Technologies Inc. Inspection apparatus and method
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.
LU92351B1 (en) * 2014-01-09 2015-07-10 Tmt Tapping Measuring Technology Sarl Method and probe for determining the material distribution in a blast furnace
US10073058B2 (en) 2015-02-11 2018-09-11 Structural Integrity Associates Dynamic pulsed eddy current probe
US10895555B2 (en) 2015-03-30 2021-01-19 Structural Integrity Associates, Inc. System for in-line inspection using a dynamic pulsed eddy current probe and method thereof
CA2951848C (en) 2015-12-15 2024-01-16 Eddyfi Ndt Inc. Pulsed eddy current testing with dual-purpose coils
US20230003687A1 (en) 2019-11-20 2023-01-05 Square Robot, Inc. Systems, methods and apparatus for in-service tank inspections

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3597678A (en) * 1968-12-24 1971-08-03 Williams Brothers Co Apparatus for sensing thickness variations, discontinuities, and the like in elongated steel structures by measuring variations in magnetic properties utilizing a flux gate
US5339256A (en) * 1991-11-27 1994-08-16 The United States Of Americas As Represented By The United States Department Of Energy Expert system for analyzing eddy current measurements
DE4327712C2 (de) * 1993-08-18 1997-07-10 Micro Epsilon Messtechnik Sensoranordnung und Verfahren zum Erfassen von Eigenschaften der Oberflächenschicht eines metallischen Targets
US5680042A (en) * 1994-12-30 1997-10-21 Lake Shore Cryotronics, Inc. Magnetoresistive sensor with reduced output signal jitter

Also Published As

Publication number Publication date
NO993712L (no) 1999-09-21
NO993712D0 (no) 1999-07-30
CA2279598A1 (en) 1998-08-06
DE69814351T2 (de) 2004-03-25
US6275030B1 (en) 2001-08-14
CA2279598C (en) 2007-05-01
EP0956503B1 (de) 2003-05-07
NO326709B1 (no) 2009-02-02
WO1998034104A1 (en) 1998-08-06
NL1005160C2 (nl) 1998-08-03
EP0956503A1 (de) 1999-11-17
AU5884898A (en) 1998-08-25

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Legal Events

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8364 No opposition during term of opposition