JPS6480859A - Multichannel flaw detection system - Google Patents
Multichannel flaw detection systemInfo
- Publication number
- JPS6480859A JPS6480859A JP62237165A JP23716587A JPS6480859A JP S6480859 A JPS6480859 A JP S6480859A JP 62237165 A JP62237165 A JP 62237165A JP 23716587 A JP23716587 A JP 23716587A JP S6480859 A JPS6480859 A JP S6480859A
- Authority
- JP
- Japan
- Prior art keywords
- probes
- defect
- unevenness
- sent
- ultrasonic wave
- 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 discriminate between a cracking defect and an unevenness defect by arranging probes and counting ultrasonic wave-received signals from the same position. CONSTITUTION:Three probes 3 are arranged at intervals of 45 deg. from one point on a weld line 2 and slid on the surface of a body 1 to be inspected. An ultrasonic wave beam 3' is sent to the probes 3 through a pulser 4 in order corresponding to three modes of the probes 3 and a detection signal is sent to an amplifier 7 through a receiver 5; when a signal higher than a constant level is obtained, it is transferred to a data processor 11 through an echo gate circuit 9 in synchronism with position data. A reflection echo due to the unevenness of the body 1 is obtained over a wide range and a reflection echo from the crack defect has high directivity, so the cracking defect can be discriminated as the unevenness.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62237165A JPS6480859A (en) | 1987-09-24 | 1987-09-24 | Multichannel flaw detection system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62237165A JPS6480859A (en) | 1987-09-24 | 1987-09-24 | Multichannel flaw detection system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6480859A true JPS6480859A (en) | 1989-03-27 |
Family
ID=17011343
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62237165A Pending JPS6480859A (en) | 1987-09-24 | 1987-09-24 | Multichannel flaw detection system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6480859A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61117450A (en) * | 1984-11-14 | 1986-06-04 | Tokyo Gas Co Ltd | Ultrasonic inspecting device for cracking defect detection |
JPS61201155A (en) * | 1985-03-04 | 1986-09-05 | Sumitomo Metal Ind Ltd | Method for discriminating welding defects in automatic ultrasonic flaw detection |
-
1987
- 1987-09-24 JP JP62237165A patent/JPS6480859A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61117450A (en) * | 1984-11-14 | 1986-06-04 | Tokyo Gas Co Ltd | Ultrasonic inspecting device for cracking defect detection |
JPS61201155A (en) * | 1985-03-04 | 1986-09-05 | Sumitomo Metal Ind Ltd | Method for discriminating welding defects in automatic ultrasonic flaw detection |
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