JPS6343708B2 - - Google Patents

Info

Publication number
JPS6343708B2
JPS6343708B2 JP55159586A JP15958680A JPS6343708B2 JP S6343708 B2 JPS6343708 B2 JP S6343708B2 JP 55159586 A JP55159586 A JP 55159586A JP 15958680 A JP15958680 A JP 15958680A JP S6343708 B2 JPS6343708 B2 JP S6343708B2
Authority
JP
Japan
Prior art keywords
signal
signals
attenuation
ratio
damage
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
JP55159586A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5784353A (en
Inventor
Ken Tsukada
Takashi Suzuki
Jun Oka
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP55159586A priority Critical patent/JPS5784353A/ja
Publication of JPS5784353A publication Critical patent/JPS5784353A/ja
Publication of JPS6343708B2 publication Critical patent/JPS6343708B2/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
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/4454—Signal recognition, e.g. specific values or portions, signal events, signatures
    • 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

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)
JP55159586A 1980-11-14 1980-11-14 Damage detecting method for object Granted JPS5784353A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55159586A JPS5784353A (en) 1980-11-14 1980-11-14 Damage detecting method for object

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55159586A JPS5784353A (en) 1980-11-14 1980-11-14 Damage detecting method for object

Publications (2)

Publication Number Publication Date
JPS5784353A JPS5784353A (en) 1982-05-26
JPS6343708B2 true JPS6343708B2 (de) 1988-09-01

Family

ID=15696941

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55159586A Granted JPS5784353A (en) 1980-11-14 1980-11-14 Damage detecting method for object

Country Status (1)

Country Link
JP (1) JPS5784353A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH029610A (ja) * 1988-06-29 1990-01-12 Inoue Mtp Co Ltd 自動車用ヘッドレストの製造方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5088175B2 (ja) * 2008-02-29 2012-12-05 Ｊｆｅスチール株式会社 回転軸の異常診断装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5542007A (en) * 1978-09-20 1980-03-25 Hitachi Ltd Acoustic emission detecting device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5542007A (en) * 1978-09-20 1980-03-25 Hitachi Ltd Acoustic emission detecting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH029610A (ja) * 1988-06-29 1990-01-12 Inoue Mtp Co Ltd 自動車用ヘッドレストの製造方法

Also Published As

Publication number Publication date
JPS5784353A (en) 1982-05-26

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