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NON-DESTRUCTIVE EVALUATION OF WELDED JOINTS OF BAR WOUND STATOR UTILIZING INFRARED AND THERMAL METHODS
NON-DESTRUCTIVE EVALUATION OF WELDED JOINTS OF BAR WOUND STATOR UTILIZING INFRARED AND THERMAL METHODS
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机译:棒式定子焊接接头的红外无损评价及热方法
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摘要
A method and system for non-destructive evaluation of one or more welds of a stator includes activating the stator welds using an electrical current; recording radiometric thermal images of the welds over time; and analyzing a temperature-time profile of a weld to qualify the weld by one or more of estimating the size of the weld, determining if the temperature of the activated weld has exceeded a predetermined temperature at a predetermined time, or comparing the temperature-time profile of the weld to a reference. The stator may be configured as a bar wound stator. A mask may be applied to the stator to reduce reflections or emissions from non-weld thermal sources.
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