JPS5719654A - Crack sound signal measuring device - Google Patents

Crack sound signal measuring device

Info

Publication number
JPS5719654A
JPS5719654A JP8336380A JP8336380A JPS5719654A JP S5719654 A JPS5719654 A JP S5719654A JP 8336380 A JP8336380 A JP 8336380A JP 8336380 A JP8336380 A JP 8336380A JP S5719654 A JPS5719654 A JP S5719654A
Authority
JP
Japan
Prior art keywords
sound signal
circuit
crack sound
output
detected
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.)
Granted
Application number
JP8336380A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6244615B2 (enrdf_load_stackoverflow
Inventor
Kazutoshi Takahashi
Masahiko Suzuki
Risaburo Sato
Hiroaki Niitsuma
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.)
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry 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 Asahi Chemical Industry Co Ltd filed Critical Asahi Chemical Industry Co Ltd
Priority to JP8336380A priority Critical patent/JPS5719654A/ja
Publication of JPS5719654A publication Critical patent/JPS5719654A/ja
Publication of JPS6244615B2 publication Critical patent/JPS6244615B2/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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Immunology (AREA)
  • General Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
JP8336380A 1980-06-18 1980-06-18 Crack sound signal measuring device Granted JPS5719654A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8336380A JPS5719654A (en) 1980-06-18 1980-06-18 Crack sound signal measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8336380A JPS5719654A (en) 1980-06-18 1980-06-18 Crack sound signal measuring device

Publications (2)

Publication Number Publication Date
JPS5719654A true JPS5719654A (en) 1982-02-01
JPS6244615B2 JPS6244615B2 (enrdf_load_stackoverflow) 1987-09-21

Family

ID=13800338

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8336380A Granted JPS5719654A (en) 1980-06-18 1980-06-18 Crack sound signal measuring device

Country Status (1)

Country Link
JP (1) JPS5719654A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010266404A (ja) * 2009-05-18 2010-11-25 Nippon Physical Acoustics Ltd 溶接状態の異常判別装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4052110B2 (ja) * 2002-12-05 2008-02-27 株式会社デンソー 振動波判定装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010266404A (ja) * 2009-05-18 2010-11-25 Nippon Physical Acoustics Ltd 溶接状態の異常判別装置

Also Published As

Publication number Publication date
JPS6244615B2 (enrdf_load_stackoverflow) 1987-09-21

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