JPS56148055A - Flaw detector and flaw detection in pipe using thereof - Google Patents

Flaw detector and flaw detection in pipe using thereof

Info

Publication number
JPS56148055A
JPS56148055A JP5202380A JP5202380A JPS56148055A JP S56148055 A JPS56148055 A JP S56148055A JP 5202380 A JP5202380 A JP 5202380A JP 5202380 A JP5202380 A JP 5202380A JP S56148055 A JPS56148055 A JP S56148055A
Authority
JP
Japan
Prior art keywords
point
designated
projecting
depth
flaw
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
JP5202380A
Other languages
Japanese (ja)
Other versions
JPS6355667B2 (en
Inventor
Takushi Harada
Yasumaru Taniguchi
Junichi Sugitani
Teruo Ashimoto
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.)
Kubota Corp
Osaka Gas Co Ltd
Original Assignee
Kubota Corp
Osaka Gas 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 Kubota Corp, Osaka Gas Co Ltd filed Critical Kubota Corp
Priority to JP5202380A priority Critical patent/JPS56148055A/en
Publication of JPS56148055A publication Critical patent/JPS56148055A/en
Publication of JPS6355667B2 publication Critical patent/JPS6355667B2/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
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/24—Probes
    • G01N29/2487—Directing probes, e.g. angle probes

Landscapes

  • Physics & Mathematics (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 transmit ultrasonic wave into a place located in designated depth with a designated projection angle and a transmission angle by probe vibrators formed in spherical shape. CONSTITUTION:The vibrator 8 of a projecting probe 6 and another vibrator 8 of a receiving probe 7 are respectively set at the projecting pont A of the former and the transmitted point B from the pipe 1 so that vibrating face from each bibrator 8, can form spherical shape or empty semione being nearly to the shape around each setting A, B. Basing a depth l of a point to be flaw-detected and a distance L between both probes 6 and 7, the projecting point A and transmitted point B are determined initially and, then the centers of vibraters O are re-positioned so that the projecting point A and transmitted point B may be directed to the center Pa of the pipe 1. Thereby ultrasonic wave having designated projecting angle theta can be projected at the designated projecting point A, and ultrasonic wave can be transmitted through a place of the designated depth l. Then the sent signal can be received with the designated transmission angle theta'. In the case of varying the depth of flaw-detection required. It is realized only by varying the relation deistance between the both probes 6 and 7, thereby flaw-detection of any depth can be operated.
JP5202380A 1980-04-18 1980-04-18 Flaw detector and flaw detection in pipe using thereof Granted JPS56148055A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5202380A JPS56148055A (en) 1980-04-18 1980-04-18 Flaw detector and flaw detection in pipe using thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5202380A JPS56148055A (en) 1980-04-18 1980-04-18 Flaw detector and flaw detection in pipe using thereof

Publications (2)

Publication Number Publication Date
JPS56148055A true JPS56148055A (en) 1981-11-17
JPS6355667B2 JPS6355667B2 (en) 1988-11-04

Family

ID=12903209

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5202380A Granted JPS56148055A (en) 1980-04-18 1980-04-18 Flaw detector and flaw detection in pipe using thereof

Country Status (1)

Country Link
JP (1) JPS56148055A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5446595A (en) * 1977-09-21 1979-04-12 Hitachi Ltd Ultrasonic flaw locator of electronic scanning type
JPS54128789A (en) * 1978-03-29 1979-10-05 Kubota Ltd Method of detecting flaw of tube via ultrasonic wave
JPS54153690A (en) * 1978-05-24 1979-12-04 Hitachi Ltd Variable angle ultrasonic probe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5446595A (en) * 1977-09-21 1979-04-12 Hitachi Ltd Ultrasonic flaw locator of electronic scanning type
JPS54128789A (en) * 1978-03-29 1979-10-05 Kubota Ltd Method of detecting flaw of tube via ultrasonic wave
JPS54153690A (en) * 1978-05-24 1979-12-04 Hitachi Ltd Variable angle ultrasonic probe

Also Published As

Publication number Publication date
JPS6355667B2 (en) 1988-11-04

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