KR850004640A - 강자성 튜브의 전자기 점검 시스템 - Google Patents

강자성 튜브의 전자기 점검 시스템 Download PDF

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Publication number
KR850004640A
KR850004640A KR1019840007877A KR840007877A KR850004640A KR 850004640 A KR850004640 A KR 850004640A KR 1019840007877 A KR1019840007877 A KR 1019840007877A KR 840007877 A KR840007877 A KR 840007877A KR 850004640 A KR850004640 A KR 850004640A
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KR
South Korea
Prior art keywords
tube
conductor
power supply
magnetic field
solenoid coil
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KR1019840007877A
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English (en)
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KR870002113B1 (ko
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로버트 버책 제임스 (외 2)
Original Assignee
알버트 제이·에드워즈
더 뱁콕 앤드 윌콕스 컴퍼니
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Publication of KR850004640A publication Critical patent/KR850004640A/ko
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Publication of KR870002113B1 publication Critical patent/KR870002113B1/ko

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    • 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
    • G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
    • 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
    • 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

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  • 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

내용 없음

Description

강자성 튜브의 전자기 점검 시스템
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제2도는 본 발명에 따른 실시예.
제3도는 제2도의 A-A선 단면도.

Claims (11)

  1. 제1자장과 제2자장의 벡터합에 의해 생성된 합성자장을 튜브벽내로 유도시키는 장치와 중공실린더형 몸체를 가진 튜브를 통과하는 스캔너, 튜브벽에 인접하기 상기 몸체에 의해 운반되는 제1솔레노이드코일, 상기 제1자장을 생성하기 위해 상기 솔레노이드코일을 구동시키는 제1전원, 상기 제2자장을 생성하기 위한 제2장치 및 튜브벽내의 결함에 의해 생긴 누설자속에 응답하여 출력신호를 생성하도록 상기 튜브의 벽과 솔레노이드코일 사이에 배열된 감응기들로 구성되어 원상태의 열교환기 튜브를 점검하기 위한 강자성 튜브의 전자기 점검 시스템.
  2. 제1항에 있어서, 상기 제2장치는 상기 제2자기장을 생성하기 위해 전도체를 구동시키는 제2전원과 전도체로 구성된 것.
  3. 제2항에 있어서, 전도체는 상기 중공실린더형 몸체에 의해 이송되는 제2솔레노이드 코일로 구성된 것.
  4. 제2항에 있어서, 전도체는 튜브벽으로 구성된 것.
  5. 제2항에 있어서, 전도체가 상기 튜브내측 중앙부의 실린더형 도체로 구성된 것.
  6. 제2항에 있어서, 제1전원 및 제2전원은 튜브벽내에 있는 합성 나선형 회전자계를 생성하기 위해 이상(異相)교류 전원으로 되어 있는 것.
  7. 제2항에 있어서, 상기 제1전원 및 제2전원은 직류전원으로 되어 있는 것.
  8. 제2항에 있어서, 상기 전원중 하나는 직류전원으로 되어 있고, 다른 하나는 교류전원으로 되어 있는 것.
  9. 제3항에 있어서, 제2솔레노이드코일은 상기 제1솔레노이드코일에 수직으로, 중공실린더형 몸체 내부에 배치되어 있는 것.
  10. 제1항에 있어서, 실린더형 몸체에는 튜브의 내부에서 튜브를 점검시 상기 스캔너를 안내하기 위해 상기 감응기들보다 넓게 각 단부에 외부로 돌출된 림이 설치되어 있는 것.
  11. 제1항에 있어서, 실린더형 몸체에는, 튜브의 외부로부터 튜브를 점검시 상기 스캔너를 안내하기 위해 감응기들보다 넓게 각 단부의 내측으로 돌출된 림이 설치되어 있는 것.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019840007877A 1983-12-27 1984-12-12 강자성튜브의 전자기점검장치 KR870002113B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US566020 1983-12-27
US06/566,020 US4649343A (en) 1983-12-27 1983-12-27 Electromagnetic flux leakage inspection system for ferromagnetic tubes

Publications (2)

Publication Number Publication Date
KR850004640A true KR850004640A (ko) 1985-07-25
KR870002113B1 KR870002113B1 (ko) 1987-12-08

Family

ID=24261120

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019840007877A KR870002113B1 (ko) 1983-12-27 1984-12-12 강자성튜브의 전자기점검장치

Country Status (8)

Country Link
US (1) US4649343A (ko)
EP (1) EP0152687A1 (ko)
JP (1) JPS60157046A (ko)
KR (1) KR870002113B1 (ko)
AU (1) AU3717584A (ko)
CA (1) CA1226901A (ko)
DK (1) DK590384A (ko)
IE (1) IE55814B1 (ko)

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KR890001536B1 (ko) * 1984-11-23 1989-05-06 더 뱁콕 앤드 윌콕스 컴퍼니 내부의 결함상태를 검출하기 위한 와류 탐침
DE3511076A1 (de) * 1985-03-27 1986-10-09 Kopp AG International Pipeline Services, 4450 Lingen Molch fuer elektromagnetische pruefungen an rohrleitungswandungen aus stahl sowie verfahren hierzu
JPH073408B2 (ja) * 1985-03-29 1995-01-18 日本鋼管株式会社 パイプラインの孔食検出装置
CH667727A5 (de) * 1985-05-28 1988-10-31 Zellweger Uster Ag Messkopf zur induktiven messung der dicke einer isolierenden schicht auf einem elektrischen leiter.
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US5237270A (en) * 1990-10-11 1993-08-17 Atomic Energy Of Canada Limited Ferromagnetic eddy current probe having eccentric magnetization for detecting anomalies in a tube
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US5315234A (en) * 1992-04-03 1994-05-24 General Electric Company Eddy current device for inspecting a component having a flexible support with a plural sensor array
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DE19929072A1 (de) 1999-06-25 2000-12-28 Pii Pipetronix Gmbh Vorrichtung zur Prüfung von Rohrleitungen aus ferromagnetischen Materialien
US7295004B2 (en) * 2006-03-03 2007-11-13 Gary Kroner Eddy current probe and method of manufacture thereof
US20090160437A1 (en) * 2007-12-21 2009-06-25 Carbon Steel Inspection, Inc. Eddy Current Probe And Method Of Manufacture Thereof
JP5946086B2 (ja) 2012-03-19 2016-07-05 株式会社日立製作所 渦電流検査装置、渦電流検査プローブ、及び渦電流検査方法
US9995799B2 (en) * 2015-07-14 2018-06-12 The Boeing Company System and method for magnetic characterization of induction heating wires
US11460442B2 (en) * 2019-04-11 2022-10-04 Tdw Delaware, Inc. Pipeline tool with composite magnetic field for inline inspection
WO2023049975A1 (pt) 2021-10-01 2023-04-06 Pipeway Engenharia Ltda Equipamento para inspeção interna de integridade de dutos por meio de memória magnética de metal

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Also Published As

Publication number Publication date
KR870002113B1 (ko) 1987-12-08
DK590384A (da) 1985-06-28
CA1226901A (en) 1987-09-15
AU3717584A (en) 1985-07-04
DK590384D0 (da) 1984-12-10
IE842983L (en) 1985-06-27
US4649343A (en) 1987-03-10
EP0152687A1 (en) 1985-08-28
JPS60157046A (ja) 1985-08-17
IE55814B1 (en) 1991-01-16

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