PT813680E - Verificacao nao destrutiva das condutas e tubos com a utilizacao de sensores magneto-estritivos - Google Patents

Verificacao nao destrutiva das condutas e tubos com a utilizacao de sensores magneto-estritivos

Info

Publication number
PT813680E
PT813680E PT96906545T PT96906545T PT813680E PT 813680 E PT813680 E PT 813680E PT 96906545 T PT96906545 T PT 96906545T PT 96906545 T PT96906545 T PT 96906545T PT 813680 E PT813680 E PT 813680E
Authority
PT
Portugal
Prior art keywords
ferromagnetic
tubes
pipes
mechanical
magnetostrictive effect
Prior art date
Application number
PT96906545T
Other languages
English (en)
Inventor
Kwun Hegeon
Cecil M Ii Teller
Original Assignee
Southwest Res Inst
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 Southwest Res Inst filed Critical Southwest Res Inst
Publication of PT813680E publication Critical patent/PT813680E/pt

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/14—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object using acoustic emission techniques
    • 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
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/24—Probes
    • G01N29/2412—Probes using the magnetostrictive properties of the material to be examined, e.g. electromagnetic acoustic transducers [EMAT]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/042—Wave modes
    • G01N2291/0421—Longitudinal waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/048—Transmission, i.e. analysed material between transmitter and receiver
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/10—Number of transducers
    • G01N2291/101—Number of transducers one transducer
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/10—Number of transducers
    • G01N2291/102—Number of transducers one emitter, one receiver
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/26—Scanned objects
    • G01N2291/262—Linear objects
    • G01N2291/2626—Wires, bars, rods
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/26—Scanned objects
    • G01N2291/263—Surfaces
    • G01N2291/2634—Surfaces cylindrical from outside

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Acoustics & Sound (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
PT96906545T 1995-03-09 1996-02-20 Verificacao nao destrutiva das condutas e tubos com a utilizacao de sensores magneto-estritivos PT813680E (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/401,170 US5581037A (en) 1992-11-06 1995-03-09 Nondestructive evaluation of pipes and tubes using magnetostrictive sensors

Publications (1)

Publication Number Publication Date
PT813680E true PT813680E (pt) 2006-09-29

Family

ID=23586619

Family Applications (1)

Application Number Title Priority Date Filing Date
PT96906545T PT813680E (pt) 1995-03-09 1996-02-20 Verificacao nao destrutiva das condutas e tubos com a utilizacao de sensores magneto-estritivos

Country Status (11)

Country Link
US (1) US5581037A (pt)
EP (1) EP0813680B1 (pt)
JP (1) JP3669706B2 (pt)
CN (1) CN1111738C (pt)
AT (1) ATE326010T1 (pt)
AU (1) AU690436B2 (pt)
CA (1) CA2214981C (pt)
DE (1) DE69636115T2 (pt)
ES (1) ES2264799T3 (pt)
PT (1) PT813680E (pt)
WO (1) WO1996028727A1 (pt)

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CA2214981A1 (en) 1996-09-19
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WO1996028727A1 (en) 1996-09-19
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ATE326010T1 (de) 2006-06-15
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EP0813680B1 (en) 2006-05-10
AU690436B2 (en) 1998-04-23
EP0813680A4 (en) 2000-11-22
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