DE69936438D1 - Verfahren und Vorrichtung zur Messung der Ultraschalldämpfung zur zerstörungsfreien Prüfung durch Laser-Ultraschall - Google Patents

Verfahren und Vorrichtung zur Messung der Ultraschalldämpfung zur zerstörungsfreien Prüfung durch Laser-Ultraschall

Info

Publication number
DE69936438D1
DE69936438D1 DE69936438T DE69936438T DE69936438D1 DE 69936438 D1 DE69936438 D1 DE 69936438D1 DE 69936438 T DE69936438 T DE 69936438T DE 69936438 T DE69936438 T DE 69936438T DE 69936438 D1 DE69936438 D1 DE 69936438D1
Authority
DE
Germany
Prior art keywords
pulse
laser
intensity
reflected
rtm
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 - Lifetime
Application number
DE69936438T
Other languages
English (en)
Other versions
DE69936438T2 (de
Inventor
Odile Petillon
Hubert Voillaume
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.)
Dassault Aviation SA
Aerospatiale Matra
Original Assignee
Dassault Aviation SA
Aerospatiale Matra
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 Dassault Aviation SA, Aerospatiale Matra filed Critical Dassault Aviation SA
Application granted granted Critical
Publication of DE69936438D1 publication Critical patent/DE69936438D1/de
Publication of DE69936438T2 publication Critical patent/DE69936438T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01N29/04—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
    • G01N29/24—Probes
    • G01N29/2418—Probes using optoacoustic interaction with the material, e.g. laser radiation, photoacoustics
    • 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
    • G01N2291/01—Indexing codes associated with the measuring variable
    • G01N2291/017—Doppler techniques
    • 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)
  • Biochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Acoustics & Sound (AREA)
  • Optics & Photonics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
DE69936438T 1998-12-22 1999-12-17 Verfahren und Vorrichtung zur Messung der Ultraschalldämpfung zur zerstörungsfreien Prüfung durch Laser-Ultraschall Expired - Lifetime DE69936438T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9816253 1998-12-22
FR9816253A FR2787575B1 (fr) 1998-12-22 1998-12-22 Procede et installation de mesure d'attenuation ultrasonore, pour le controle non destructif par ultrasons laser

Publications (2)

Publication Number Publication Date
DE69936438D1 true DE69936438D1 (de) 2007-08-16
DE69936438T2 DE69936438T2 (de) 2008-03-06

Family

ID=9534337

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69936438T Expired - Lifetime DE69936438T2 (de) 1998-12-22 1999-12-17 Verfahren und Vorrichtung zur Messung der Ultraschalldämpfung zur zerstörungsfreien Prüfung durch Laser-Ultraschall

Country Status (4)

Country Link
EP (1) EP1014086B1 (de)
AT (1) ATE366416T1 (de)
DE (1) DE69936438T2 (de)
FR (1) FR2787575B1 (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1224935A (en) * 1984-11-28 1987-08-04 Her Majesty The Queen, In Right Of Canada, As Represented By The Ministe R Of The National Research Council And The Minister Of Energy, Mines And Resources Optical interferometric reception of ultrasonic energy
US5585921A (en) * 1995-03-15 1996-12-17 Hughes Aircraft Company Laser-ultrasonic non-destructive, non-contacting inspection system
US5760904A (en) * 1996-07-26 1998-06-02 General Electric Company Method and system for inspecting a surface of an object with laser ultrasound

Also Published As

Publication number Publication date
EP1014086A1 (de) 2000-06-28
FR2787575B1 (fr) 2001-03-30
DE69936438T2 (de) 2008-03-06
FR2787575A1 (fr) 2000-06-23
EP1014086B1 (de) 2007-07-04
ATE366416T1 (de) 2007-07-15

Similar Documents

Publication Publication Date Title
DE69013757T2 (de) Messung der Festigkeit einer bewegenden Stoffbahn.
SE8602533D0 (sv) Ultrasonic method and device for detecting and measuring defects in metal media
DE60227553D1 (de) Vorrichtung und verfahren zur ortung von störungen im energieweg eines fokussierten ultraschallsystems
ATE123579T1 (de) Verfahren zur entfernungsmessung und gerät dafür.
ATE155884T1 (de) Verfahren und vorrichtung zur kontinuierlichen zerstörungsfreien ultraschallprüfung von eisenbahnschienen
SE8700663D0 (sv) Sett for icke-forstorande provning
Koehler et al. Improvement of ultrasonic testing of concrete by combining signal conditioning methods, scanning laser vibrometer and space averaging techniques
ATE268478T1 (de) Verfahren und vorrichtung zum aufspüren eines objektes
DE59406684D1 (de) Verfahren und vorrichtung zur zerstörungsfreien prüfung von gegenständen mit ultraschall
DE69936438D1 (de) Verfahren und Vorrichtung zur Messung der Ultraschalldämpfung zur zerstörungsfreien Prüfung durch Laser-Ultraschall
JPS6051643B2 (ja) 工作片表面変形の検出方法および装置
KR20070011239A (ko) 목적물의 초음파 시험을 위한 방법 및 장치
US6496268B1 (en) Laser-based glass thickness measurement system and method
ATE153132T1 (de) Verfahren und vorrichtung zur im wesentlichen dämpfungsunabhängigen messung der dichte von flüssigkeiten mittels ultraschall
JPS61160053A (ja) 超音波探傷試験方法
DE69128414D1 (de) Rohrprüfvorrichtung
US4510811A (en) Method for distinguishing between interfering signals and signals indicating defects of workpieces during ultrasonic testing
RU2262689C1 (ru) Способ диагностики несплошностей поверхности слоя металлопроката и устройство для его осуществления
RU2045059C1 (ru) Способ ультразвукового контроля качества сборки соединений с натягом
SU603896A1 (ru) Способ контрол акустического контакта
Hayashi et al. Defect imaging for plate-like structures using diffuse acoustic wave generated by modulated laser
SU1533502A1 (ru) Способ ультразвукового контрол изделий
RU2032171C1 (ru) Способ ультразвукового контроля цилиндрических изделий
Fomitchov et al. Sagnac interferometer for ultrasound detection on rough surfaces
SU1035506A1 (ru) Ультразвуковой дефектоскоп

Legal Events

Date Code Title Description
8364 No opposition during term of opposition