JPS6439548A - Ultrasonic flaw detector - Google Patents

Ultrasonic flaw detector

Info

Publication number
JPS6439548A
JPS6439548A JP62196000A JP19600087A JPS6439548A JP S6439548 A JPS6439548 A JP S6439548A JP 62196000 A JP62196000 A JP 62196000A JP 19600087 A JP19600087 A JP 19600087A JP S6439548 A JPS6439548 A JP S6439548A
Authority
JP
Japan
Prior art keywords
probe
flaw detection
wave
defect
point
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
JP62196000A
Other languages
Japanese (ja)
Other versions
JPH0726939B2 (en
Inventor
Mamoru Kanbe
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP62196000A priority Critical patent/JPH0726939B2/en
Publication of JPS6439548A publication Critical patent/JPS6439548A/en
Publication of JPH0726939B2 publication Critical patent/JPH0726939B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

PURPOSE:To obtain an inexpensive flaw detector of simple structure which can detect a defect in a flaw detection object layer nearby the surface of an object of flaw detection by acquiring a surface reflected wave from the surface of the object of flaw detection in a sound absorption cylinder and separating and extracting a defect reflected wave from the defect. CONSTITUTION:A transmitting probe 2 and a receiving probe 4 which are provided at a distance are fitted to an X-Y driving part 12 through a holding mechanism 13, the interval distance and angle direction between the transmission point of the probe 2 and the reception point of the probe 4 are adjusted freely and held, and the probes are driven in an X-Y direction. The probe 2 is equipped with the sound absorption cylinder 14 which is formed cylindrically at one end and in a truncated conic tube shape at the other end part, and a sound absorber is provided on the internal surface. Then the probe 2 is arranged at such an angle that a transverse wave of 45 deg. in refraction angle is generated at the point of incidence of a sent wave on the surface of the object 20 of flaw detection, and the surface reflected wave which is reflected at the incidence point with a sent wave as its longitudinal ultrasonic wave is acquired, scattered, and absorbed by the sound absorption cylinder 14. If there is a defect in the flaw detection object layer, a defective reflected wave based upon the transverse wave generated in the object 20 of flaw detection is received by the probe 4 and those respective waves are displayed as a display oscillogram for the flaw detection.
JP62196000A 1987-08-05 1987-08-05 Ultrasonic flaw detector Expired - Lifetime JPH0726939B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62196000A JPH0726939B2 (en) 1987-08-05 1987-08-05 Ultrasonic flaw detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62196000A JPH0726939B2 (en) 1987-08-05 1987-08-05 Ultrasonic flaw detector

Publications (2)

Publication Number Publication Date
JPS6439548A true JPS6439548A (en) 1989-02-09
JPH0726939B2 JPH0726939B2 (en) 1995-03-29

Family

ID=16350552

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62196000A Expired - Lifetime JPH0726939B2 (en) 1987-08-05 1987-08-05 Ultrasonic flaw detector

Country Status (1)

Country Link
JP (1) JPH0726939B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5969253A (en) * 1992-04-15 1999-10-19 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Adminstration Method and apparatus for evaluating multilayer objects for imperfections
JP2002310996A (en) * 2001-04-09 2002-10-23 Tokyo Yogyo Co Ltd Method for measuring filling state of filling bed of molten metal storage container and apparatus used therefor
JP2013124978A (en) * 2011-12-15 2013-06-24 Mitsubishi Heavy Ind Ltd Pipe insertion type ultrasonic flaw detector
JP2014041067A (en) * 2012-08-23 2014-03-06 Hitachi Ltd Ultrasonic flaw detection method and device
JP2016161328A (en) * 2015-02-27 2016-09-05 日立Ｇｅニュークリア・エナジー株式会社 Ultrasonic inspection method and ultrasonic inspection device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101465075B1 (en) * 2014-02-28 2014-11-26 성균관대학교산학협력단 Apparatus for detecting water immersion ultrasonic flaw

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5969253A (en) * 1992-04-15 1999-10-19 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Adminstration Method and apparatus for evaluating multilayer objects for imperfections
JP2002310996A (en) * 2001-04-09 2002-10-23 Tokyo Yogyo Co Ltd Method for measuring filling state of filling bed of molten metal storage container and apparatus used therefor
JP2013124978A (en) * 2011-12-15 2013-06-24 Mitsubishi Heavy Ind Ltd Pipe insertion type ultrasonic flaw detector
JP2014041067A (en) * 2012-08-23 2014-03-06 Hitachi Ltd Ultrasonic flaw detection method and device
JP2016161328A (en) * 2015-02-27 2016-09-05 日立Ｇｅニュークリア・エナジー株式会社 Ultrasonic inspection method and ultrasonic inspection device

Also Published As

Publication number Publication date
JPH0726939B2 (en) 1995-03-29

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