WO2002010709A3 - Pipe inspection with a wave launcher, welding of pipe sections - Google Patents

Pipe inspection with a wave launcher, welding of pipe sections Download PDF

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Publication number
WO2002010709A3
WO2002010709A3 PCT/US2001/024083 US0124083W WO0210709A3 WO 2002010709 A3 WO2002010709 A3 WO 2002010709A3 US 0124083 W US0124083 W US 0124083W WO 0210709 A3 WO0210709 A3 WO 0210709A3
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
wave launcher
inspection
welding
input
Prior art date
Application number
PCT/US2001/024083
Other languages
French (fr)
Other versions
WO2002010709A2 (en
Inventor
Robert Tingley
Original Assignee
Draper Lab Charles S
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 Draper Lab Charles S filed Critical Draper Lab Charles S
Priority to BR0112956-2A priority Critical patent/BR0112956A/en
Priority to AU2001278111A priority patent/AU2001278111A1/en
Publication of WO2002010709A2 publication Critical patent/WO2002010709A2/en
Publication of WO2002010709A3 publication Critical patent/WO2002010709A3/en
Priority to NO20030539A priority patent/NO20030539D0/en

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
    • G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
    • G01N29/348—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with frequency characteristics, e.g. single frequency signals, chirp signals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N22/00—Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
    • G01N22/02—Investigating the presence of flaws
    • 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
    • G01N29/04—Analysing solids
    • G01N29/11—Analysing solids by measuring attenuation of acoustic waves
    • 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
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/4463—Signal correction, e.g. distance amplitude correction [DAC], distance gain size [DGS], noise filtering
    • 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
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/46—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by spectral analysis, e.g. Fourier analysis or wavelet analysis
    • 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
    • G01N2291/2636—Surfaces cylindrical from inside
    • 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
    • G01N2291/267—Welds
    • G01N2291/2675—Seam, butt welding

Abstract

Non invasive pipe (140) inspection. The system includes a processor (110), an analyzer (120), and a wave launcher (130). The wave launcher is adapted to transmit an input wideband waveform - centerfrequency 800 MHz - having a selected input energy into the pipe along a longitudinal axis, and to receive from the pipe a reflected component of the input waveform having a reflected energy. The analyzer is adapted to generate the input waveform, and to receive the reflected component. The processor is adapted to compare the input waveform with the reflected component to determine characteristics (150). An axial curvature or bending of a section of the pipe is also determined. Used on a barge to lay a pipe along a bed of water for the inspection of the welding of sections of the pipe.
PCT/US2001/024083 2000-08-01 2001-08-01 Pipe inspection with a wave launcher, welding of pipe sections WO2002010709A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BR0112956-2A BR0112956A (en) 2000-08-01 2001-08-01 Pipe Inspection System and Method for Inspecting a Pipe
AU2001278111A AU2001278111A1 (en) 2000-08-01 2001-08-01 Pipe inspection with a wave launcher, welding of pipe sections
NO20030539A NO20030539D0 (en) 2000-08-01 2003-02-03 Non-invasive pipe inspection system

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US22217000P 2000-08-01 2000-08-01
US60/222,170 2000-08-01
US09/655,954 2000-09-06
US09/655,954 US6751560B1 (en) 2000-08-01 2000-09-06 Non-invasive pipeline inspection system

Publications (2)

Publication Number Publication Date
WO2002010709A2 WO2002010709A2 (en) 2002-02-07
WO2002010709A3 true WO2002010709A3 (en) 2002-08-29

Family

ID=26916503

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/024083 WO2002010709A2 (en) 2000-08-01 2001-08-01 Pipe inspection with a wave launcher, welding of pipe sections

Country Status (5)

Country Link
US (2) US6751560B1 (en)
AU (1) AU2001278111A1 (en)
BR (1) BR0112956A (en)
NO (1) NO20030539D0 (en)
WO (1) WO2002010709A2 (en)

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Also Published As

Publication number Publication date
US20020035437A1 (en) 2002-03-21
US6751560B1 (en) 2004-06-15
BR0112956A (en) 2003-07-01
US6597997B2 (en) 2003-07-22
NO20030539D0 (en) 2003-02-03
AU2001278111A1 (en) 2002-02-13
WO2002010709A2 (en) 2002-02-07

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