KR860004312A - 내부의 결함상태를 검출하기 위한 와류 탐침 - Google Patents

내부의 결함상태를 검출하기 위한 와류 탐침 Download PDF

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Publication number
KR860004312A
KR860004312A KR1019850008368A KR850008368A KR860004312A KR 860004312 A KR860004312 A KR 860004312A KR 1019850008368 A KR1019850008368 A KR 1019850008368A KR 850008368 A KR850008368 A KR 850008368A KR 860004312 A KR860004312 A KR 860004312A
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South Korea
Prior art keywords
plane
coils
vortex probe
opposite
opposed
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KR1019850008368A
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English (en)
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KR890001536B1 (ko
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에드워드 아벨 게리
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로버트 제이. 에드워즈
더 뱁콕 앤드 윌콕스 컴퍼니
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Publication of KR860004312A publication Critical patent/KR860004312A/ko
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Publication of KR890001536B1 publication Critical patent/KR890001536B1/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
    • G01N27/90—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
    • G01N27/9006—Details, e.g. in the structure or functioning of 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

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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)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

내용 없음

Description

내부의 결함상태를 검출하기 위한 와류 탐침
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 와류탐침을 시험될 관에 끼워넣은 상태의 단면도.
제2도는 본 발명의 와류탐침 단면도.
제4도는 본 발명의 와류탐침을 시험될 관에 넣은 상태의 일부 절개사시도인다.
10 : 와류탐침, 12 : 신호전달장치, 14 : 열결간, 16 : 열교환관, 18 : 지지판, 20 : 설치대, 22 : 확장부, 24 : 균열부, 28 : 제1평면, 30,32,34,36 : 코일, 38 : 제2평면, 40 : 관, 42 : 확장부, 44 : 균열부.

Claims (4)

  1. 축상대칭구조물에서 비대칭의 균열이나 파손부를 검출하기 위한 와류탐침에 있어서, 서로 대향되는 자기장을 형성하도록 대향되게 제1 평면상에 나란히 배치된 두개의 코일과 서로 대향되는 자기장을 형성하도록 대향되게 제2 평면상에 나란히 배치된 2개의 코일로 구성되면서, 상기 제1평면과 제2평면은 평행하게 일정한 간격으로 떨어져 축상공간을 형성하고, 제2평면상의 대향된 두개의 코일은 제1평면의 대향된 2개의 코일과 일정각도를 비틀려 배치됨을 특징으로 하는 균열검출용 와류탐침
  2. 제1항에 있어서, 제1평면의 대향된 두개의 코일은 제2평면의 대향된 두개의 코일과 90°각으로 비틀린 것.
  3. 제1항에 있어서, 제1평면에 배치된 두개의 코일들과 제2평면에 배치된 두개의 코일들은 각각 D자형상을 가지며, 각 평면상에 서로 대향되게 나란히 배치된 것.
  4. 제3항에 있어서, D자형상의 각각의 코일들은 일직선부를 가지며 상기 일직선부는 서로 나란히 배치되고, 제1평면의 일직선부와 제2 평면의 일직선부는 90°각으로 비틀려 배치된 것.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019850008368A 1984-11-23 1985-11-08 내부의 결함상태를 검출하기 위한 와류 탐침 KR890001536B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US67444684A 1984-11-23 1984-11-23
US674446 1984-11-23

Publications (2)

Publication Number Publication Date
KR860004312A true KR860004312A (ko) 1986-06-20
KR890001536B1 KR890001536B1 (ko) 1989-05-06

Family

ID=24706634

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019850008368A KR890001536B1 (ko) 1984-11-23 1985-11-08 내부의 결함상태를 검출하기 위한 와류 탐침

Country Status (4)

Country Link
EP (1) EP0186964A1 (ko)
JP (2) JPS61130802A (ko)
KR (1) KR890001536B1 (ko)
ES (1) ES295689Y (ko)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4808927A (en) * 1987-02-19 1989-02-28 Atomic Energy Of Canada Limited Circumferentially compensating eddy current probe with alternately polarized receiver coil
US4808924A (en) * 1987-02-19 1989-02-28 Atomic Energy Of Canada Limited Circumferentially compensating eddy current probe with alternately polarized transmit coils and receiver coils
US4827216A (en) * 1987-03-25 1989-05-02 Grimson E G Differential triple-coil tester for wire rope with periodic lay effect cancellation
DE4001544A1 (de) * 1990-01-20 1991-07-25 Bosch Gmbh Robert Messeinrichtung zur bestimmung eines drehwinkels
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
FR2992732B1 (fr) * 2012-06-29 2014-08-08 Soc Technique Pour Lenergie Atomique Technicatome Procede de controle de l'etancheite d'un echangeur a plaques
EP3812756A1 (en) * 2019-10-23 2021-04-28 Airbus Operations, S.L. Eddy current probe for inspecting cracks in a metallic fitting lug

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1014226A (en) * 1975-06-12 1977-07-19 Valentino S. Cecco Circumferentially differentiating multiple coil eddy current probe
FR2320542A1 (fr) * 1975-08-07 1977-03-04 Commissariat Energie Atomique Dispositif de controle a courants de foucault pour tubes metalliques cintres au moins localement
DE2817574B2 (de) * 1978-04-21 1980-04-30 Kraftwerk Union Ag, 4330 Muelheim Wirbelstrompriifsonde zur Untersuchung metallischer Werkstoffe auf Materialtrennungen und fehlerhafte Einschlüsse
JPS5524638A (en) * 1978-08-10 1980-02-21 Mitsubishi Heavy Ind Ltd Eddy current flaw detector
US4649343A (en) * 1983-12-27 1987-03-10 The Babcock & Wilcox Company Electromagnetic flux leakage inspection system for ferromagnetic tubes

Also Published As

Publication number Publication date
ES295689Y (es) 1987-12-01
JPS61130802A (ja) 1986-06-18
JPH072967U (ja) 1995-01-17
EP0186964A1 (en) 1986-07-09
KR890001536B1 (ko) 1989-05-06
ES295689U (es) 1987-04-16

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