Abstract
The article suggests an effective method of replacing zonal focusing with an antenna array, traditionally used for automated ultrasonic inspection of welded joints with a narrow cutting to detect defects at the fusion boundary. This method, based on the use of multi-circuit digital focusing antenna technology (DFA), allows you to obtain and analyze high-quality images of reflectors. The proposed method, in comparison with zonal focusing made using phased array technology, is less sensitive to the accuracy of positioning the antenna array relative to the seam axis and to changes in the thickness of the control object, allows you to estimate the height of defects not by the amplitude attribute, but by the size of the glare reflectors.
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