JPS6440176A - Measuring instrument for molten pool - Google Patents
Measuring instrument for molten poolInfo
- Publication number
- JPS6440176A JPS6440176A JP19525987A JP19525987A JPS6440176A JP S6440176 A JPS6440176 A JP S6440176A JP 19525987 A JP19525987 A JP 19525987A JP 19525987 A JP19525987 A JP 19525987A JP S6440176 A JPS6440176 A JP S6440176A
- Authority
- JP
- Japan
- Prior art keywords
- molten pool
- scanning line
- luminance distribution
- high luminance
- distribution range
- 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
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
PURPOSE:To satisfactorily measure a molten pool width in a short time by carrying out differentiation processing on a scanning line of a molten pool picture and carrying out integration processing on its specific region. CONSTITUTION:A picture signal of the molten pool is differentiated for every scanning line. Then, an electrode is detected from the size of a high luminance distribution range of the prescribed scanning line, by which a welding start is decided. When the welding start is decided, the molten pool center is found from a result of the above-mentioned differentiation and further, two regions at least are set with respect to the center. Then, the integration is carried out for each region with respect to the picture signal included in these regions to find the high luminance distribution range for every region. Then, the maximum one of the high luminance distribution range is the molten pool width.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19525987A JPS6440176A (en) | 1987-08-06 | 1987-08-06 | Measuring instrument for molten pool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19525987A JPS6440176A (en) | 1987-08-06 | 1987-08-06 | Measuring instrument for molten pool |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6440176A true JPS6440176A (en) | 1989-02-10 |
JPH0475118B2 JPH0475118B2 (en) | 1992-11-27 |
Family
ID=16338161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19525987A Granted JPS6440176A (en) | 1987-08-06 | 1987-08-06 | Measuring instrument for molten pool |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6440176A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5105218A (en) * | 1988-12-07 | 1992-04-14 | Ricoh Company, Ltd. | Method of resetting toner shortage of an image forming apparatus |
JPH0760445A (en) * | 1993-08-27 | 1995-03-07 | Nippon F A Technol Kk | Outer circumference welding device for thin metallic sheet, automatic follow-up method used therein and its method and method for deciding normal/defective condition of welding state |
US6238237B1 (en) | 1997-03-18 | 2001-05-29 | Rohm Co., Ltd. | Connector |
JP2005081418A (en) * | 2003-09-10 | 2005-03-31 | Nippon Steel Corp | Method for automatically controlling deposited amount of narrow bevel multilayer arc welding |
-
1987
- 1987-08-06 JP JP19525987A patent/JPS6440176A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5105218A (en) * | 1988-12-07 | 1992-04-14 | Ricoh Company, Ltd. | Method of resetting toner shortage of an image forming apparatus |
JPH0760445A (en) * | 1993-08-27 | 1995-03-07 | Nippon F A Technol Kk | Outer circumference welding device for thin metallic sheet, automatic follow-up method used therein and its method and method for deciding normal/defective condition of welding state |
US6238237B1 (en) | 1997-03-18 | 2001-05-29 | Rohm Co., Ltd. | Connector |
JP2005081418A (en) * | 2003-09-10 | 2005-03-31 | Nippon Steel Corp | Method for automatically controlling deposited amount of narrow bevel multilayer arc welding |
Also Published As
Publication number | Publication date |
---|---|
JPH0475118B2 (en) | 1992-11-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |