CA2249752C - Methode et appareil d'inspection aux ultrasons - Google Patents

Methode et appareil d'inspection aux ultrasons Download PDF

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Publication number
CA2249752C
CA2249752C CA 2249752 CA2249752A CA2249752C CA 2249752 C CA2249752 C CA 2249752C CA 2249752 CA2249752 CA 2249752 CA 2249752 A CA2249752 A CA 2249752A CA 2249752 C CA2249752 C CA 2249752C
Authority
CA
Canada
Prior art keywords
shell
transducer
dryer
holes
casting
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 - Fee Related
Application number
CA 2249752
Other languages
English (en)
Other versions
CA2249752A1 (fr
Inventor
Richard L. Fearnside
Gordon R. Voll
Dennis A. White
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.)
Valmet Technologies Oy
Original Assignee
Metso Paper Oy
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
Priority claimed from US08/948,959 external-priority patent/US5992236A/en
Application filed by Metso Paper Oy filed Critical Metso Paper Oy
Publication of CA2249752A1 publication Critical patent/CA2249752A1/fr
Application granted granted Critical
Publication of CA2249752C publication Critical patent/CA2249752C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/025—Change of phase or condition
    • G01N2291/0258—Structural degradation, e.g. fatigue of composites, ageing of oils
    • 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)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
CA 2249752 1997-10-10 1998-10-07 Methode et appareil d'inspection aux ultrasons Expired - Fee Related CA2249752C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/948,959 US5992236A (en) 1996-08-01 1997-10-10 Ultrasonic inspection method
US948,959 1997-10-10

Publications (2)

Publication Number Publication Date
CA2249752A1 CA2249752A1 (fr) 1999-04-10
CA2249752C true CA2249752C (fr) 2002-12-03

Family

ID=25488435

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2249752 Expired - Fee Related CA2249752C (fr) 1997-10-10 1998-10-07 Methode et appareil d'inspection aux ultrasons

Country Status (2)

Country Link
JP (1) JP3008105B2 (fr)
CA (1) CA2249752C (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101639186B1 (ko) * 2014-03-27 2016-07-13 김종석 저장 탱크 라이닝의 초음파 검사 방법

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5681996A (en) 1996-08-01 1997-10-28 Beloit Technologies, Inc. Ultrasonic device for inspection of metal parts

Also Published As

Publication number Publication date
CA2249752A1 (fr) 1999-04-10
JP3008105B2 (ja) 2000-02-14
JPH11190727A (ja) 1999-07-13

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