JPS5539007A - Ultrasonic flaw detector using two detecting elements - Google Patents

Ultrasonic flaw detector using two detecting elements

Info

Publication number
JPS5539007A
JPS5539007A JP11176678A JP11176678A JPS5539007A JP S5539007 A JPS5539007 A JP S5539007A JP 11176678 A JP11176678 A JP 11176678A JP 11176678 A JP11176678 A JP 11176678A JP S5539007 A JPS5539007 A JP S5539007A
Authority
JP
Japan
Prior art keywords
detecting element
elements
flaw
point
opposite direction
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
JP11176678A
Other languages
Japanese (ja)
Other versions
JPS6228866B2 (en
Inventor
Masaaki Ooshima
Hajime Koizumi
Kozo Toyama
Toshio Saeki
Naoki Tanaka
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.)
Kajima Corp
Original Assignee
Kajima 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 Kajima Corp filed Critical Kajima Corp
Priority to JP11176678A priority Critical patent/JPS5539007A/en
Publication of JPS5539007A publication Critical patent/JPS5539007A/en
Publication of JPS6228866B2 publication Critical patent/JPS6228866B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To provide a device, which can measure even the quantity of defectiveness in a simple, prompt and accurate manner, by providing a detecting element for oscillating ultrasonic beam and a detecting element for receiving the same and by equidistantly moving and scanning the two elements on one side of a mother material in the opposite direction by means of a jig.
CONSTITUTION: In case the welded portion C between a column A and a beam B is to be inspected, only the width W of the beam B is measured from the welded portion C and a point O is set at the center point for the flaw detection. First, both a transmitting flaw detecting element 7 for generating ultrasonic beam at a deflection angle of 45 degrees and a receiving flaw detecting element 9 are placed at the side of the beam B thereby to set the sensitivity of the ultrasonic flaw detector and to mark the detection position of a defective echo. A table 1 having a gear 2 and arms 4 and 6 is fixed at the point O of the beam B, and the detecting elements 7 and 9 are placed on a plate having the same thickness as that of the beam B so that they are fixed by fixing shafts 8 and 9. A contact medium such as glycerin is used to equidistantly move the elements 7 and 9 in the opposite direction to that of arrow for the scanning purpose so that the change in the level of the echo is measure. The defective area is presumed in comparison with the test results of the known test piece. Thus it is possible to detect the flow of the whole welded surface accurately and promptly.
COPYRIGHT: (C)1980,JPO&Japio
JP11176678A 1978-09-13 1978-09-13 Ultrasonic flaw detector using two detecting elements Granted JPS5539007A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11176678A JPS5539007A (en) 1978-09-13 1978-09-13 Ultrasonic flaw detector using two detecting elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11176678A JPS5539007A (en) 1978-09-13 1978-09-13 Ultrasonic flaw detector using two detecting elements

Publications (2)

Publication Number Publication Date
JPS5539007A true JPS5539007A (en) 1980-03-18
JPS6228866B2 JPS6228866B2 (en) 1987-06-23

Family

ID=14569632

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11176678A Granted JPS5539007A (en) 1978-09-13 1978-09-13 Ultrasonic flaw detector using two detecting elements

Country Status (1)

Country Link
JP (1) JPS5539007A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4522064A (en) * 1983-12-12 1985-06-11 Sigma Research Inc. Ultrasonic method and apparatus for determining the depth of a crack in a solid material

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51135585U (en) * 1975-04-23 1976-11-01

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51135585U (en) * 1975-04-23 1976-11-01

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4522064A (en) * 1983-12-12 1985-06-11 Sigma Research Inc. Ultrasonic method and apparatus for determining the depth of a crack in a solid material

Also Published As

Publication number Publication date
JPS6228866B2 (en) 1987-06-23

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