JPS528885A - Light fixed type crackdetector signal decision circuit - Google Patents
Light fixed type crackdetector signal decision circuitInfo
- Publication number
- JPS528885A JPS528885A JP8437675A JP8437675A JPS528885A JP S528885 A JPS528885 A JP S528885A JP 8437675 A JP8437675 A JP 8437675A JP 8437675 A JP8437675 A JP 8437675A JP S528885 A JPS528885 A JP S528885A
- Authority
- JP
- Japan
- Prior art keywords
- decision circuit
- fixed type
- crackdetector
- light fixed
- signal decision
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 238000007689 inspection Methods 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
PURPOSE:A light fixed type crack detector signal decision circuit which enables stable decision of a external noise and lateral crack signal for a surface crack inspection of a band-type steel plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8437675A JPS528885A (en) | 1975-07-11 | 1975-07-11 | Light fixed type crackdetector signal decision circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8437675A JPS528885A (en) | 1975-07-11 | 1975-07-11 | Light fixed type crackdetector signal decision circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS528885A true JPS528885A (en) | 1977-01-24 |
JPS5718135B2 JPS5718135B2 (en) | 1982-04-15 |
Family
ID=13828806
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8437675A Granted JPS528885A (en) | 1975-07-11 | 1975-07-11 | Light fixed type crackdetector signal decision circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS528885A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5826343A (en) * | 1981-08-10 | 1983-02-16 | Matsushita Electric Ind Co Ltd | Tape recorder |
JPS5953594U (en) * | 1982-09-30 | 1984-04-07 | パイオニア株式会社 | magnetic recording and playback device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4884688A (en) * | 1972-02-08 | 1973-11-10 | ||
JPS4890289A (en) * | 1972-02-29 | 1973-11-24 |
-
1975
- 1975-07-11 JP JP8437675A patent/JPS528885A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4884688A (en) * | 1972-02-08 | 1973-11-10 | ||
JPS4890289A (en) * | 1972-02-29 | 1973-11-24 |
Also Published As
Publication number | Publication date |
---|---|
JPS5718135B2 (en) | 1982-04-15 |
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