WO1996028727A1 - Non-destructive evaluation of pipes and tubes using magnetostrictive sensors - Google Patents
Non-destructive evaluation of pipes and tubes using magnetostrictive sensors Download PDFInfo
- Publication number
- WO1996028727A1 WO1996028727A1 PCT/US1996/002255 US9602255W WO9628727A1 WO 1996028727 A1 WO1996028727 A1 WO 1996028727A1 US 9602255 W US9602255 W US 9602255W WO 9628727 A1 WO9628727 A1 WO 9628727A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- magnetic field
- coil
- ferromagnetic
- cylindrical shell
- pipe
- Prior art date
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
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96906545A EP0813680B1 (en) | 1995-03-09 | 1996-02-20 | Non-destructive evaluation of pipes and tubes using magnetostrictive sensors |
AU49890/96A AU690436B2 (en) | 1995-03-09 | 1996-02-20 | Non-destructive evaluation of pipes and tubes using magnetostrictive sensors |
DE69636115T DE69636115T2 (en) | 1995-03-09 | 1996-02-20 | NON-DESTRUCTIVE TESTING OF PIPES AND CABLES WITH MAGNETOSTRICTIVE SENSORS |
CA002214981A CA2214981C (en) | 1995-03-09 | 1996-02-20 | Non-destructive evaluation of pipes and tubes using magnetostrictive sensors |
JP52760396A JP3669706B2 (en) | 1995-03-09 | 1996-02-20 | Nondestructive evaluation of pipes and tubes using magnetostrictive sensors |
Applications Claiming Priority (2)
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 |
US08/401,170 | 1995-03-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996028727A1 true WO1996028727A1 (en) | 1996-09-19 |
Family
ID=23586619
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1996/002255 WO1996028727A1 (en) | 1995-03-09 | 1996-02-20 | Non-destructive evaluation of pipes and tubes using magnetostrictive sensors |
Country Status (11)
Country | Link |
---|---|
US (1) | US5581037A (en) |
EP (1) | EP0813680B1 (en) |
JP (1) | JP3669706B2 (en) |
CN (1) | CN1111738C (en) |
AT (1) | ATE326010T1 (en) |
AU (1) | AU690436B2 (en) |
CA (1) | CA2214981C (en) |
DE (1) | DE69636115T2 (en) |
ES (1) | ES2264799T3 (en) |
PT (1) | PT813680E (en) |
WO (1) | WO1996028727A1 (en) |
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WO1999022233A1 (en) * | 1997-10-29 | 1999-05-06 | Friedrich Theysohn Gmbh | Error detection device with ultrasonic signals for continuous plastic strips, profiles or tubes |
WO2001094934A1 (en) * | 2000-06-08 | 2001-12-13 | Bae Systems Plc | Method and apparatus for detection of structural damage |
WO2002077634A2 (en) * | 2001-03-22 | 2002-10-03 | The Regents Of The University Of California | Guided acoustic wave inspection system |
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US10533970B2 (en) | 2016-09-01 | 2020-01-14 | Maurice Bernard Dusseault | System and method for detecting irregularities in rebar in reinforced concrete |
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AU1984597A (en) | 1996-02-27 | 1997-09-16 | Profile Technologies, Inc. | Pipe testing apparatus and method |
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US6000288A (en) * | 1998-04-21 | 1999-12-14 | Southwest Research Institute | Determining average wall thickness and wall-thickness variation of a liquid-carrying pipe |
US6205859B1 (en) * | 1999-01-11 | 2001-03-27 | Southwest Research Institute | Method for improving defect detectability with magnetostrictive sensors for piping inspection |
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US6624628B1 (en) * | 1999-03-17 | 2003-09-23 | Southwest Research Institute | Method and apparatus generating and detecting torsional waves for long range inspection of pipes and tubes |
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Also Published As
Publication number | Publication date |
---|---|
PT813680E (en) | 2006-09-29 |
DE69636115T2 (en) | 2006-11-30 |
ES2264799T3 (en) | 2007-01-16 |
AU4989096A (en) | 1996-10-02 |
EP0813680B1 (en) | 2006-05-10 |
EP0813680A4 (en) | 2000-11-22 |
DE69636115D1 (en) | 2006-06-14 |
CN1111738C (en) | 2003-06-18 |
CA2214981A1 (en) | 1996-09-19 |
US5581037A (en) | 1996-12-03 |
JPH11502020A (en) | 1999-02-16 |
ATE326010T1 (en) | 2006-06-15 |
CN1183142A (en) | 1998-05-27 |
CA2214981C (en) | 2006-05-30 |
JP3669706B2 (en) | 2005-07-13 |
EP0813680A1 (en) | 1997-12-29 |
AU690436B2 (en) | 1998-04-23 |
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