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专利名称：Process and device for controlling the
operation of an optical channel, for a laser-beam carried by a welding tool
发明人：Jacques Griffaton申请号：US07/8722申请日：19920615公开号：US05302800A公开日：19940412
摘要：The control of the optical operation of a laser beam welding tool is carried out,when the tool is in an out of service position, by low-power auxiliary radiation. Thisradiation is passed to a measuring device () equipped with a photoelectric cell (86)after having traversed the tool as far as a welding head (58). The control can apply to anoptical channel carried by a welding iron used for welding repair sleeves in pressurizedwater nuclear reactor steam generator tubes.
申请人：FRAMATOME
代理机构：Pollock, Vande Sande & Priddy
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