JPS5714469A - Detecting method of welding position - Google Patents
Detecting method of welding positionInfo
- Publication number
- JPS5714469A JPS5714469A JP8790080A JP8790080A JPS5714469A JP S5714469 A JPS5714469 A JP S5714469A JP 8790080 A JP8790080 A JP 8790080A JP 8790080 A JP8790080 A JP 8790080A JP S5714469 A JPS5714469 A JP S5714469A
- Authority
- JP
- Japan
- Prior art keywords
- probe
- detected
- search coil
- detecting
- welding boundary
- 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 Magnetic Means (AREA)
Abstract
PURPOSE: To detect the position of welding boundary exactly from a position signal of a probe and abrupt change signal of impedance of a flaw detecting apparatus by scanning the surface of a weld zone with a detecting probe of an eddy current flaw detector.
CONSTITUTION: A search coil 3b of a detecting probe 3 that consists of a ferrite rod 3a and a search coil 3b is set to a transmitter 8. The probe 3 is shifted to a weld zone. When the probe 3 arrives at the welding boundary, load of the search coil 3b changes abruptly. Then, the gain of the transmitting loop changes to form a lag in peak value of transmitting waveform. The change of this envelope is detected by an eddy current flaw detector 6. At the same time, the position of the detecting probe 3 in X-direction is detected by a position indicator 4. The position of welding boundary is detected from the two signals.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8790080A JPS5714469A (en) | 1980-06-30 | 1980-06-30 | Detecting method of welding position |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8790080A JPS5714469A (en) | 1980-06-30 | 1980-06-30 | Detecting method of welding position |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5714469A true JPS5714469A (en) | 1982-01-25 |
Family
ID=13927762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8790080A Pending JPS5714469A (en) | 1980-06-30 | 1980-06-30 | Detecting method of welding position |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5714469A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4830261A (en) * | 1987-10-29 | 1989-05-16 | Laser Limited, Inc. | Eddy current tool positioning system |
-
1980
- 1980-06-30 JP JP8790080A patent/JPS5714469A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4830261A (en) * | 1987-10-29 | 1989-05-16 | Laser Limited, Inc. | Eddy current tool positioning system |
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