JPS541682A - Defect detecting method for surfaces of materials being examined with pickup tube - Google Patents
Defect detecting method for surfaces of materials being examined with pickup tubeInfo
- Publication number
- JPS541682A JPS541682A JP6647077A JP6647077A JPS541682A JP S541682 A JPS541682 A JP S541682A JP 6647077 A JP6647077 A JP 6647077A JP 6647077 A JP6647077 A JP 6647077A JP S541682 A JPS541682 A JP S541682A
- Authority
- JP
- Japan
- Prior art keywords
- examined
- materials
- detecting method
- defect detecting
- pickup tube
- 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 Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
PURPOSE: To surely detect even minute flaws on the surface of the material being examined moving at a high speed by detecting the fluorescent magnetic powder patterns owing to the defects on the surface of the moving material being examined, inspecting plural horizontal scanning lines and performing defect detection through OR.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6647077A JPS541682A (en) | 1977-06-06 | 1977-06-06 | Defect detecting method for surfaces of materials being examined with pickup tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6647077A JPS541682A (en) | 1977-06-06 | 1977-06-06 | Defect detecting method for surfaces of materials being examined with pickup tube |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS541682A true JPS541682A (en) | 1979-01-08 |
Family
ID=13316693
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6647077A Pending JPS541682A (en) | 1977-06-06 | 1977-06-06 | Defect detecting method for surfaces of materials being examined with pickup tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS541682A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4897806A (en) * | 1972-03-30 | 1973-12-13 |
-
1977
- 1977-06-06 JP JP6647077A patent/JPS541682A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4897806A (en) * | 1972-03-30 | 1973-12-13 |
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