JPH0128340B2 - - Google Patents

Info

Publication number
JPH0128340B2
JPH0128340B2 JP55185188A JP18518880A JPH0128340B2 JP H0128340 B2 JPH0128340 B2 JP H0128340B2 JP 55185188 A JP55185188 A JP 55185188A JP 18518880 A JP18518880 A JP 18518880A JP H0128340 B2 JPH0128340 B2 JP H0128340B2
Authority
JP
Japan
Prior art keywords
waveform
probe
reflected
boundary surface
defects
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
Application number
JP55185188A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57111444A (en
Inventor
Keizaburo Harumi
Noriaki Fujimori
Tetsuo Saito
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.)
Shimizu Construction Co Ltd
Original Assignee
Shimizu Construction Co Ltd
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 Shimizu Construction Co Ltd filed Critical Shimizu Construction Co Ltd
Priority to JP55185188A priority Critical patent/JPS57111444A/ja
Publication of JPS57111444A publication Critical patent/JPS57111444A/ja
Publication of JPH0128340B2 publication Critical patent/JPH0128340B2/ja
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
    • G01N29/04—Analysing solids
    • G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
    • G01N29/075—Analysing solids by measuring propagation velocity or propagation time of acoustic waves by measuring or comparing phase angle
    • 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
    • G01N29/44—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
    • 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
    • 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
    • G01N2291/056—Angular incidence, angular propagation
    • 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

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)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
JP55185188A 1980-12-29 1980-12-29 Ultrasonic flaw detecting method based on observation of waveform Granted JPS57111444A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55185188A JPS57111444A (en) 1980-12-29 1980-12-29 Ultrasonic flaw detecting method based on observation of waveform

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55185188A JPS57111444A (en) 1980-12-29 1980-12-29 Ultrasonic flaw detecting method based on observation of waveform

Publications (2)

Publication Number Publication Date
JPS57111444A JPS57111444A (en) 1982-07-10
JPH0128340B2 true JPH0128340B2 (enrdf_load_html_response) 1989-06-02

Family

ID=16166384

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55185188A Granted JPS57111444A (en) 1980-12-29 1980-12-29 Ultrasonic flaw detecting method based on observation of waveform

Country Status (1)

Country Link
JP (1) JPS57111444A (enrdf_load_html_response)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59178322A (ja) * 1983-03-30 1984-10-09 Akashi Seisakusho Co Ltd 音響インピ−ダンスの判定方法および装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53100283A (en) * 1977-02-15 1978-09-01 Japan National Railway Supersonic crack detecting digitized method for wheel axels

Also Published As

Publication number Publication date
JPS57111444A (en) 1982-07-10

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