ATE125360T1 - Verfahren zur feststellung von fehlern auf metallrohren mit schraubenlinienförmig verlaufenden innenrippen. - Google Patents

Verfahren zur feststellung von fehlern auf metallrohren mit schraubenlinienförmig verlaufenden innenrippen.

Info

Publication number
ATE125360T1
ATE125360T1 AT91420167T AT91420167T ATE125360T1 AT E125360 T1 ATE125360 T1 AT E125360T1 AT 91420167 T AT91420167 T AT 91420167T AT 91420167 T AT91420167 T AT 91420167T AT E125360 T1 ATE125360 T1 AT E125360T1
Authority
AT
Austria
Prior art keywords
signal
metal pipes
detecting defects
internal ribs
helical internal
Prior art date
Application number
AT91420167T
Other languages
English (en)
Inventor
Phu-Ann Ngo
Olivier Tailleux
Herve Wiart
Original Assignee
Valtubes
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 Valtubes filed Critical Valtubes
Application granted granted Critical
Publication of ATE125360T1 publication Critical patent/ATE125360T1/de

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating 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
    • G01N29/04Analysing solids
    • G01N29/07Analysing solids by measuring propagation velocity or propagation time of acoustic waves
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating 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
    • G01N29/04Analysing solids
    • G01N29/043Analysing solids in the interior, e.g. by shear waves
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating 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
    • G01N29/04Analysing solids
    • G01N29/11Analysing solids by measuring attenuation of acoustic waves
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating 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
    • G01N29/36Detecting the response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/40Detecting the response signal, e.g. electronic circuits specially adapted therefor by amplitude filtering, e.g. by applying a threshold or by gain control
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating 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
    • G01N29/44Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/4463Signal correction, e.g. distance amplitude correction [DAC], distance gain size [DGS], noise filtering
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/02Indexing codes associated with the analysed material
    • G01N2291/023Solids
    • G01N2291/0234Metals, e.g. steel
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/02Indexing codes associated with the analysed material
    • G01N2291/028Material parameters
    • G01N2291/02854Length, thickness
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/04Wave modes and trajectories
    • G01N2291/044Internal reflections (echoes), e.g. on walls or defects
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/10Number of transducers
    • G01N2291/101Number of transducers one transducer
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S73/00Measuring and testing
    • Y10S73/90Automatic gain control

Landscapes

  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pathology (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
AT91420167T 1990-05-28 1991-05-27 Verfahren zur feststellung von fehlern auf metallrohren mit schraubenlinienförmig verlaufenden innenrippen. ATE125360T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR909006825A FR2662501B1 (fr) 1990-05-28 1990-05-28 Procede de detection de defauts sur des tubes metalliques a nervures helicouidales internes.

Publications (1)

Publication Number Publication Date
ATE125360T1 true ATE125360T1 (de) 1995-08-15

Family

ID=9397173

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91420167T ATE125360T1 (de) 1990-05-28 1991-05-27 Verfahren zur feststellung von fehlern auf metallrohren mit schraubenlinienförmig verlaufenden innenrippen.

Country Status (7)

Country Link
US (1) US5230247A (de)
EP (1) EP0459920B1 (de)
JP (1) JP3084082B2 (de)
AT (1) ATE125360T1 (de)
DE (1) DE69111307T2 (de)
ES (1) ES2074245T3 (de)
FR (1) FR2662501B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5377237A (en) * 1993-04-05 1994-12-27 General Electric Company Method of inspecting repaired stub tubes in boiling water nuclear reactors
US7146524B2 (en) * 2001-08-03 2006-12-05 Isilon Systems, Inc. Systems and methods for providing a distributed file system incorporating a virtual hot spare
US9784627B2 (en) 2013-11-27 2017-10-10 Panasonic Intellectual Property Management Co., Ltd. Load sensor, load detector including load sensor, and method for detecting load

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2238130C3 (de) * 1972-08-03 1980-10-09 Krautkraemer, Gmbh, 5000 Koeln Verfahren zur Ermittlung und Kompensation von unterschiedlichen Schallschwächungseigenschaften bei der Ultraschall-Werkstoffprüfung
US4016750B1 (en) * 1975-11-06 1994-04-05 Stanford Research Inst Ultrasonic imaging method and apparatus
US4056971A (en) * 1976-05-10 1977-11-08 Automation Industries, Inc. Distance amplitude compensation system
GB1534366A (en) * 1976-07-23 1978-12-06 Emi Ltd Signal processing arrangements
DE2636401C3 (de) * 1976-08-11 1983-11-03 Mannesmann AG, 4000 Düsseldorf Verfahren zur automatischen Erkennung von Ultraschallanzeigen
US4098130A (en) * 1977-03-11 1978-07-04 General Electric Company Energy reflection flaw detection system
JPS58165073A (ja) * 1982-03-25 1983-09-30 Mitsubishi Heavy Ind Ltd 距離振巾補正回路
US4524622A (en) * 1982-07-20 1985-06-25 Kabushiki Kaisha Kobe Seiko Sho Method and apparatus of ultrasonic flaw detection
US4487072A (en) * 1982-08-11 1984-12-11 Livingston Waylon A Ultrasonic testing of tubular goods
US4599900A (en) * 1984-01-03 1986-07-15 Automation Industries, Inc. Workpiece for handling apparatus for nondestructive testing
FR2615288B1 (fr) * 1987-05-12 1989-09-22 Commissariat Energie Atomique Procede automatique d'identification de defauts par ultrasons et systeme correspondant

Also Published As

Publication number Publication date
FR2662501B1 (fr) 1994-11-18
JP3084082B2 (ja) 2000-09-04
DE69111307D1 (de) 1995-08-24
FR2662501A1 (fr) 1991-11-29
EP0459920A1 (de) 1991-12-04
US5230247A (en) 1993-07-27
JPH0674942A (ja) 1994-03-18
DE69111307T2 (de) 1996-01-25
ES2074245T3 (es) 1995-09-01
EP0459920B1 (de) 1995-07-19

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee