JPS5719656A - Flaw detector - Google Patents

Flaw detector

Info

Publication number
JPS5719656A
JPS5719656A JP9448280A JP9448280A JPS5719656A JP S5719656 A JPS5719656 A JP S5719656A JP 9448280 A JP9448280 A JP 9448280A JP 9448280 A JP9448280 A JP 9448280A JP S5719656 A JPS5719656 A JP S5719656A
Authority
JP
Japan
Prior art keywords
flaw
sensors
positions
sensor
matrix
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.)
Pending
Application number
JP9448280A
Other languages
Japanese (ja)
Inventor
Nobuo Uesugi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP9448280A priority Critical patent/JPS5719656A/en
Publication of JPS5719656A publication Critical patent/JPS5719656A/en
Pending 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
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02854—Length, thickness

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)

Abstract

PURPOSE:To reduce the number of signal cable channels by determinating a flaw position on the basis of a sensor position where an acoustic emission (AE) sensor arranged in a matrix in a structure detects an elastic wave at a flaw part. CONSTITUTION:Each of AE sensors 111... is arranged in a matrix and connected with common cables 12, 13 at each column and row. Further, by an identifier 16 for AE sensor positions, positions of a plurality of sensors 111... that have detected an elastic waves corresponding to flaw parts are identified. When on the basis of these position identifying signals, said operation is performed in an arithmetic circuit 17, positions of flaw parts are determined and displayed on an indicator 18. By the arrangement of the AE sensors using common lines of columns and rows, the number of signal cable channels is reduced and a flaw detector easy to maintain and to inspect is obtained.
JP9448280A 1980-07-10 1980-07-10 Flaw detector Pending JPS5719656A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9448280A JPS5719656A (en) 1980-07-10 1980-07-10 Flaw detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9448280A JPS5719656A (en) 1980-07-10 1980-07-10 Flaw detector

Publications (1)

Publication Number Publication Date
JPS5719656A true JPS5719656A (en) 1982-02-01

Family

ID=14111493

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9448280A Pending JPS5719656A (en) 1980-07-10 1980-07-10 Flaw detector

Country Status (1)

Country Link
JP (1) JPS5719656A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01212354A (en) * 1988-02-19 1989-08-25 N F Kairo Sekkei Block:Kk Acoustic emission sensor and acoustic emission measuring apparatus using the same
JPH01212353A (en) * 1988-02-19 1989-08-25 N F Kairo Sekkei Block:Kk Acoustic emission measuring apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4966189A (en) * 1972-10-26 1974-06-26

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4966189A (en) * 1972-10-26 1974-06-26

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01212354A (en) * 1988-02-19 1989-08-25 N F Kairo Sekkei Block:Kk Acoustic emission sensor and acoustic emission measuring apparatus using the same
JPH01212353A (en) * 1988-02-19 1989-08-25 N F Kairo Sekkei Block:Kk Acoustic emission measuring apparatus

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