FR2436394A1 - Procede pour la discrimination de defauts par examen non destructif par ultra-sons - Google Patents

Procede pour la discrimination de defauts par examen non destructif par ultra-sons

Info

Publication number
FR2436394A1
FR2436394A1 FR7922850A FR7922850A FR2436394A1 FR 2436394 A1 FR2436394 A1 FR 2436394A1 FR 7922850 A FR7922850 A FR 7922850A FR 7922850 A FR7922850 A FR 7922850A FR 2436394 A1 FR2436394 A1 FR 2436394A1
Authority
FR
France
Prior art keywords
destructive
defects
examination
discrimination
ultra
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.)
Granted
Application number
FR7922850A
Other languages
English (en)
Other versions
FR2436394B1 (fr
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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 Mannesmann AG filed Critical Mannesmann AG
Publication of FR2436394A1 publication Critical patent/FR2436394A1/fr
Application granted granted Critical
Publication of FR2436394B1 publication Critical patent/FR2436394B1/fr
Granted 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
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/4445—Classification of defects
    • 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
    • G01N29/06—Visualisation of the interior, e.g. acoustic microscopy
    • G01N29/0609—Display arrangements, e.g. colour displays
    • G01N29/0618—Display arrangements, e.g. colour displays synchronised with scanning, e.g. in real-time
    • 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
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/30—Arrangements for calibrating or comparing, e.g. with standard objects
    • 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
    • G01N29/48—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by amplitude comparison
    • 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
    • G01N2291/044—Internal reflections (echoes), e.g. on walls or defects

Landscapes

  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

Procédé pour la discrimination automatique de défauts lors d'un examen non destructif par ultra-sons, en particulier de matières métalliques. Selon l'invention, ce procédé est caractérisé en ce que les parties réelles des signaux reçus pendant des durées de temps prédéterminées lors de l'examen sont, à l'aide d'une logique connue, transférées dans un plan d'amplitude complexe et en ce que, à l'intérieur du plan complexe, l'amplitude maximale et l'angle correspondant sont déterminés et sont placés en relation avec l'amplitude maximale et l'angle associé d'un corps de comparaison, la différence angulaire représentant une mesure pour le défaut déterminé. Examen par ultra-sons.
FR7922850A 1978-09-15 1979-09-13 Procede pour la discrimination de defauts par examen non destructif par ultra-sons Granted FR2436394A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782840748 DE2840748A1 (de) 1978-09-15 1978-09-15 Verfahren zur automatischen fehlerunterscheidung bei der zerstoerungsfreien werkstoffpruefung

Publications (2)

Publication Number Publication Date
FR2436394A1 true FR2436394A1 (fr) 1980-04-11
FR2436394B1 FR2436394B1 (fr) 1983-10-07

Family

ID=6049852

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7922850A Granted FR2436394A1 (fr) 1978-09-15 1979-09-13 Procede pour la discrimination de defauts par examen non destructif par ultra-sons

Country Status (7)

Country Link
JP (1) JPS5543493A (fr)
CA (1) CA1148650A (fr)
DE (1) DE2840748A1 (fr)
FR (1) FR2436394A1 (fr)
GB (1) GB2034036B (fr)
IT (1) IT1165301B (fr)
SU (1) SU1061709A3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2621890C1 (ru) * 2016-04-11 2017-06-07 Публичное акционерное общество Научно-производственное объединение "Искра" Способ уменьшения мертвой зоны при контроле изделий ультразвуковым эхо-импульсным методом
RU2769080C1 (ru) * 2021-05-21 2022-03-28 Акционерное общество "Научно-исследовательский институт Научно-производственное объединение "ЛУЧ" (АО "НИИ НПО "ЛУЧ") Способ ультразвукового контроля материалов и изделий

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1443793A (fr) * 1965-08-17 1966-06-24 Atomic Energy Commission Dispositif d'essai non destructif à courants de foucault
FR2227530A1 (fr) * 1973-04-28 1974-11-22 Krautkraemer Gmbh
FR2246870A1 (fr) * 1973-09-29 1975-05-02 Foerster Inst Dr Friedrich
FR2308931A1 (fr) * 1975-04-24 1976-11-19 Krautkramer Branson Procede et appareil de controle de defauts par ultrasons
US4052889A (en) * 1976-06-10 1977-10-11 Adaptronics, Inc. System for measurement of subsurface fatigue crack size
US4100808A (en) * 1975-10-22 1978-07-18 Vought Corporation Apparatus for evaluating a bond

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1443793A (fr) * 1965-08-17 1966-06-24 Atomic Energy Commission Dispositif d'essai non destructif à courants de foucault
FR2227530A1 (fr) * 1973-04-28 1974-11-22 Krautkraemer Gmbh
FR2246870A1 (fr) * 1973-09-29 1975-05-02 Foerster Inst Dr Friedrich
FR2308931A1 (fr) * 1975-04-24 1976-11-19 Krautkramer Branson Procede et appareil de controle de defauts par ultrasons
US4100808A (en) * 1975-10-22 1978-07-18 Vought Corporation Apparatus for evaluating a bond
US4052889A (en) * 1976-06-10 1977-10-11 Adaptronics, Inc. System for measurement of subsurface fatigue crack size

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXRV/68 *

Also Published As

Publication number Publication date
GB2034036B (en) 1982-12-01
JPS5543493A (en) 1980-03-27
CA1148650A (fr) 1983-06-21
SU1061709A3 (ru) 1983-12-15
IT1165301B (it) 1987-04-22
FR2436394B1 (fr) 1983-10-07
GB2034036A (en) 1980-05-29
DE2840748A1 (de) 1980-03-27
IT7925541A0 (it) 1979-09-07

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Legal Events

Date Code Title Description
ST Notification of lapse