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采用自适应跟踪探头聚焦轨迹算法研究了自适应聚焦技术，通过控制三维精密工作台实现了弧型电触头钎焊界面的 Ｃ扫描超声检测。对于弧型表面，以往的超声 Ｃ扫描造成图象失真，影响检测可靠性和分辨率，产生误检。实验表明，采用自适应聚焦技术，检测准确，效果良好。
The self-adaptive focusing technology was studied by using the adaptive tracking probe focusing trajectory algorithm. The C-scan ultrasonic inspection of the arc-type electrical contact brazing interface was realized by controlling the three-dimensional precision workbench. For curved surfaces, previous ultrasound C-scan caused image distortion, affecting the detection reliability and resolution, resulting in false detection. Experiments show that the use of adaptive focusing technology, accurate detection, the effect is good.