ES2177994T3 - Inspeccion tecnica de un material electricamente conductivo. - Google Patents

Inspeccion tecnica de un material electricamente conductivo.

Info

Publication number
ES2177994T3
ES2177994T3 ES97934475T ES97934475T ES2177994T3 ES 2177994 T3 ES2177994 T3 ES 2177994T3 ES 97934475 T ES97934475 T ES 97934475T ES 97934475 T ES97934475 T ES 97934475T ES 2177994 T3 ES2177994 T3 ES 2177994T3
Authority
ES
Spain
Prior art keywords
electromagnetic field
conductive material
electrically conductive
static
technical inspection
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
ES97934475T
Other languages
English (en)
Inventor
Andel Petrus Willem Van
Maarten Lorenz
Ricky Eduardo Ricardo Meyer
Mark Theodoor Looijer
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 INT RESEARCH
Shell Internationale Research Maatschappij BV
Original Assignee
SHELL INT RESEARCH
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 INT RESEARCH, Shell Internationale Research Maatschappij BV filed Critical SHELL INT RESEARCH
Application granted granted Critical
Publication of ES2177994T3 publication Critical patent/ES2177994T3/es
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
    • G01N27/904—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 with two or more sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness

Landscapes

  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Immunology (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Electrochemistry (AREA)
  • Biochemistry (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

DISPOSITIVO (9) PARA INSPECCIONAR UN OBJETO (2) DE MATERIAL CONDUCTOR DE LA ELECTRICIDAD QUE CONSTA DE UN TRANSMISOR DE SEÑAL NO ESTATICA PARA GENERAR UN CAMPO ELECTROMAGNETICO EN EL OBJETO (2) Y UN RECEPTOR (20, 21) PARA MEDIR LAS VARIACIONES DE LA CORRIENTE PARASITA GENERADA POR EL CAMPO ELECTROMAGNETICO NO ESTATICO Y PARA PRODUCIR UNA SEÑAL QUE REPRESENTE LA EXTINCION DE LA CORRIENTE PARASITA. EL TRANSMISOR DE SEÑAL NO ESTATICA CONSTA DE AL MENOS DOS EMISORES SEPARADOS LATERALMENTE (11, 12) PARA EMITIR UN CAMPO ELECTROMAGNETICO; ESTOS, DURANTE EL FUNCIONAMIENTO NORMAL, SE HACEN FUNCIONAR DE TAL MODO QUE SE INTENSIFIQUE EL CAMPO ELECTROMAGNETICO RESULTANTE EN LA ZONA CENTRAL (26) ENTRE LOS EMISORES (11, 12).
ES97934475T 1996-07-12 1997-07-11 Inspeccion tecnica de un material electricamente conductivo. Expired - Lifetime ES2177994T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96201978 1996-07-12

Publications (1)

Publication Number Publication Date
ES2177994T3 true ES2177994T3 (es) 2002-12-16

Family

ID=8224185

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97934475T Expired - Lifetime ES2177994T3 (es) 1996-07-12 1997-07-11 Inspeccion tecnica de un material electricamente conductivo.

Country Status (9)

Country Link
US (1) US6291992B1 (es)
EP (1) EP0910784B1 (es)
JP (1) JP4263244B2 (es)
CN (2) CN1155795C (es)
DE (1) DE69712759T2 (es)
ES (1) ES2177994T3 (es)
NO (1) NO331373B1 (es)
RU (1) RU2183008C2 (es)
WO (1) WO1998002714A1 (es)

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Also Published As

Publication number Publication date
CN1250931C (zh) 2006-04-12
EP0910784A1 (en) 1999-04-28
CN1155795C (zh) 2004-06-30
CN1544932A (zh) 2004-11-10
JP2000514559A (ja) 2000-10-31
EP0910784B1 (en) 2002-05-22
DE69712759T2 (de) 2002-12-19
NO331373B1 (no) 2011-12-12
US6291992B1 (en) 2001-09-18
NO990105D0 (no) 1999-01-11
DE69712759D1 (de) 2002-06-27
CN1225167A (zh) 1999-08-04
JP4263244B2 (ja) 2009-05-13
WO1998002714A1 (en) 1998-01-22
RU2183008C2 (ru) 2002-05-27
NO990105L (no) 1999-01-11

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