JPS6337901B2 - - Google Patents

Info

Publication number
JPS6337901B2
JPS6337901B2 JP55164423A JP16442380A JPS6337901B2 JP S6337901 B2 JPS6337901 B2 JP S6337901B2 JP 55164423 A JP55164423 A JP 55164423A JP 16442380 A JP16442380 A JP 16442380A JP S6337901 B2 JPS6337901 B2 JP S6337901B2
Authority
JP
Japan
Prior art keywords
acoustic radiation
signal
period
predetermined value
cracks
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
JP55164423A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5788362A (en
Inventor
Kazuo Fujimori
Akira Sakano
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP16442380A priority Critical patent/JPS5788362A/ja
Publication of JPS5788362A publication Critical patent/JPS5788362A/ja
Publication of JPS6337901B2 publication Critical patent/JPS6337901B2/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
    • G01N29/14—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 using acoustic emission 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
    • G01N2291/26—Scanned objects
    • G01N2291/269—Various geometry objects
    • G01N2291/2696—Wheels, Gears, Bearings

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)
JP16442380A 1980-11-20 1980-11-20 Device and method for detection of stress relief cracking Granted JPS5788362A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16442380A JPS5788362A (en) 1980-11-20 1980-11-20 Device and method for detection of stress relief cracking

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16442380A JPS5788362A (en) 1980-11-20 1980-11-20 Device and method for detection of stress relief cracking

Publications (2)

Publication Number Publication Date
JPS5788362A JPS5788362A (en) 1982-06-02
JPS6337901B2 true JPS6337901B2 (fr) 1988-07-27

Family

ID=15792860

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16442380A Granted JPS5788362A (en) 1980-11-20 1980-11-20 Device and method for detection of stress relief cracking

Country Status (1)

Country Link
JP (1) JPS5788362A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61108965U (fr) * 1984-12-19 1986-07-10

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54134689A (en) * 1978-04-12 1979-10-19 Hitachi Ltd Abnormality detecting method at press fitting in press fitting machine

Also Published As

Publication number Publication date
JPS5788362A (en) 1982-06-02

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