JPS5539073A - Ultrasonic flaw detector for pipe - Google Patents
Ultrasonic flaw detector for pipeInfo
- Publication number
- JPS5539073A JPS5539073A JP11329278A JP11329278A JPS5539073A JP S5539073 A JPS5539073 A JP S5539073A JP 11329278 A JP11329278 A JP 11329278A JP 11329278 A JP11329278 A JP 11329278A JP S5539073 A JPS5539073 A JP S5539073A
- Authority
- JP
- Japan
- Prior art keywords
- flaw
- pipe
- pulse train
- rotor
- conveyed
- 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
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
PURPOSE: To accurately locate a flaw in the pipe being conveyed in the longitudinal direction by making the flaw position relating to the pulse train which is generated in proportion to the angle of rotation of a rotor rotatable about a test piece.
CONSTITUTION: Ultrasonic flaw detectors 4a and so on are attached to an annular rotor 2 which is rotatable about a test piece 1 being conveyed irrotationaly in the longitudinal direction. A pulse train generator 8 is made coactive with the annular rotor 2 to generate the pulse train which is proportional to the angle of rotation. A rotational position detector 5 coacts with the rotor 2 to detect the rotational position. The outputs of those two are fed through a signal processing circuit 7 to a recording circuit 11 and are made to have relationships with the flaw detecting signals 12 of the detectors 4a and so on. More specifically, the existence of the flaw is made to have relationship with the output of the pulse train generator 8 and is processed so that which position of the pipe 1 is defective can be known. Thus, it is possible to accurately detect the position of the flaw in the circumferential direction of the pipe 1.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11329278A JPS5539073A (en) | 1978-09-14 | 1978-09-14 | Ultrasonic flaw detector for pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11329278A JPS5539073A (en) | 1978-09-14 | 1978-09-14 | Ultrasonic flaw detector for pipe |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5539073A true JPS5539073A (en) | 1980-03-18 |
Family
ID=14608480
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11329278A Pending JPS5539073A (en) | 1978-09-14 | 1978-09-14 | Ultrasonic flaw detector for pipe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5539073A (en) |
-
1978
- 1978-09-14 JP JP11329278A patent/JPS5539073A/en active Pending
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