DE69636115D1 - Zerstörungsfreie prüfung von rohren und leitungen mit magnetostriktiven sensoren - Google Patents

Zerstörungsfreie prüfung von rohren und leitungen mit magnetostriktiven sensoren

Info

Publication number
DE69636115D1
DE69636115D1 DE69636115T DE69636115T DE69636115D1 DE 69636115 D1 DE69636115 D1 DE 69636115D1 DE 69636115 T DE69636115 T DE 69636115T DE 69636115 T DE69636115 T DE 69636115T DE 69636115 D1 DE69636115 D1 DE 69636115D1
Authority
DE
Germany
Prior art keywords
ferromagnetic
pipes
tubes
mechanical
magnetostrictive effect
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 - Fee Related
Application number
DE69636115T
Other languages
English (en)
Other versions
DE69636115T2 (de
Inventor
Hegeon Kwun
M Teller
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.)
Southwest Research Institute SwRI
Original Assignee
Southwest Research Institute SwRI
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 Research Institute SwRI filed Critical Southwest Research Institute SwRI
Publication of DE69636115D1 publication Critical patent/DE69636115D1/de
Application granted granted Critical
Publication of DE69636115T2 publication Critical patent/DE69636115T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
DE69636115T 1995-03-09 1996-02-20 Zerstörungsfreie prüfung von rohren und leitungen mit magnetostriktiven sensoren Expired - Fee Related DE69636115T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US401170 1995-03-09
US08/401,170 US5581037A (en) 1992-11-06 1995-03-09 Nondestructive evaluation of pipes and tubes using magnetostrictive sensors
PCT/US1996/002255 WO1996028727A1 (en) 1995-03-09 1996-02-20 Non-destructive evaluation of pipes and tubes using magnetostrictive sensors

Publications (2)

Publication Number Publication Date
DE69636115D1 true DE69636115D1 (de) 2006-06-14
DE69636115T2 DE69636115T2 (de) 2006-11-30

Family

ID=23586619

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69636115T Expired - Fee Related DE69636115T2 (de) 1995-03-09 1996-02-20 Zerstörungsfreie prüfung von rohren und leitungen mit magnetostriktiven sensoren

Country Status (11)

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

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ATE326010T1 (de) 2006-06-15
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US5581037A (en) 1996-12-03
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AU4989096A (en) 1996-10-02
PT813680E (pt) 2006-09-29
CA2214981C (en) 2006-05-30
WO1996028727A1 (en) 1996-09-19
CA2214981A1 (en) 1996-09-19
JP3669706B2 (ja) 2005-07-13
EP0813680B1 (de) 2006-05-10
ES2264799T3 (es) 2007-01-16
JPH11502020A (ja) 1999-02-16
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