发明名称 |
Method and apparatus for monitoring arc welding |
摘要 |
A method and apparatus for lowering the contrast range between a welding arc and its surroundings for remote viewing of an arc welding process. A monochromatic light source (10) is used to illuminate the area surrounding the welding arc (18) and a narrow band interference filter (22) tuned to the wavelength of the monochromatic light (10), is placed in front of a viewing camera (24). The monochromatic light enhances the arc background while the filter (22) attenuates the arc illumination that reaches the camera for a more desirable contrast ratio so that the arc, weld puddle and surrounding area can be visible with a high degree of definition on the monitor.
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申请公布号 |
US4225771(A) |
申请公布日期 |
1980.09.30 |
申请号 |
US19790033062 |
申请日期 |
1979.04.25 |
申请人 |
WESTINGHOUSE ELECTRIC CORP. |
发明人 |
JUSTICE, JAMES W. H.;KENNEDY, PAUL G.;MILLER, ROBERT C. |
分类号 |
G01B11/00;B23K9/095;B23K9/32;B23K31/00;(IPC1-7):B23K9/00;H04N7/18 |
主分类号 |
G01B11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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