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GB2035571B - Flaw detection - Google Patents

Flaw detection

Info

Publication number
GB2035571B
GB2035571B GB7846759A GB7846759A GB2035571B GB 2035571 B GB2035571 B GB 2035571B GB 7846759 A GB7846759 A GB 7846759A GB 7846759 A GB7846759 A GB 7846759A GB 2035571 B GB2035571 B GB 2035571B
Authority
GB
United Kingdom
Prior art keywords
flaw detection
flaw
detection
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
Application number
GB7846759A
Other versions
GB2035571A (en
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.)
NIHON DENSOKUKI CO Ltd
Original Assignee
NIHON DENSOKUKI CO Ltd
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 NIHON DENSOKUKI CO Ltd filed Critical NIHON DENSOKUKI CO Ltd
Priority to GB7846759A priority Critical patent/GB2035571B/en
Publication of GB2035571A publication Critical patent/GB2035571A/en
Application granted granted Critical
Publication of GB2035571B publication Critical patent/GB2035571B/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G01B7/06Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
    • G01B7/10Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using magnetic means, e.g. by measuring change of reluctance
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/90Investigating 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
    • G01N27/9013Arrangements for scanning
    • G01N27/902Arrangements for scanning by moving the sensors
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/90Investigating 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
    • G01N27/904Investigating 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
GB7846759A 1978-11-30 1978-11-30 Flaw detection Expired GB2035571B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7846759A GB2035571B (en) 1978-11-30 1978-11-30 Flaw detection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7846759A GB2035571B (en) 1978-11-30 1978-11-30 Flaw detection

Publications (2)

Publication Number Publication Date
GB2035571A GB2035571A (en) 1980-06-18
GB2035571B true GB2035571B (en) 1983-03-23

Family

ID=10501456

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7846759A Expired GB2035571B (en) 1978-11-30 1978-11-30 Flaw detection

Country Status (1)

Country Link
GB (1) GB2035571B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4480225A (en) * 1982-02-11 1984-10-30 The United States Of America As Represented By The United States Department Of Energy Improved multi-directional eddy current inspection test apparatus for detecting flaws in metal articles
DE3805030A1 (en) 1988-02-18 1989-08-31 Bosch Gmbh Robert SENSOR
DE8808320U1 (en) * 1988-06-29 1989-10-26 Siemens AG, 1000 Berlin und 8000 München Probe for testing pipes, especially U-tubes of a heat exchanger
US5049817A (en) * 1990-06-08 1991-09-17 Atomic Energy Of Canada Limited Eddy current probe, incorporating multi-bracelets of different pancake coil diameters, for detecting internal defects in ferromagnetic tubes
FR2667159B1 (en) * 1990-09-24 1993-01-22 Challenger Special Oil Service MAGNETOMETRIC DEVICE FOR DYNAMIC MEASUREMENT OF AN ELECTRIC CURRENT FLOWING IN THE WALL OF A CONDUCTIVE TUBE.
FR2671186A1 (en) * 1990-12-28 1992-07-03 Cga Hbs NON-DESTRUCTIVE CONTROL DEVICE WITH CURRENT FLOWS, SWITCHING ADDITIVE FLOWS - SUBTRACT FLOWS.
DE59711048D1 (en) * 1996-09-27 2004-01-08 Karsten Lothar Feiste Measuring method and measuring device for material characterization of semi-finished products and machine components
RU2400839C1 (en) * 2009-12-25 2010-09-27 Общество с ограниченной ответственностью "Научно-внедренческое предприятие "Кропус" (ООО "НВП "Кропус") Method for determining overlapping value of telescopic joint of upper path with flange of graphite column of channel nuclear reactor, and device for its implementation

Also Published As

Publication number Publication date
GB2035571A (en) 1980-06-18

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19951130