Research on an Automatic Weld Inspection Device for Steel-Clad Flooring

The operational principles of the eddy current detection was elaborated in detail, and the design of the automated inspection system was addressed from the perspectives of hardware and software. Experimental validation demonstrated that the device achieved a high detection rate for weld defects located on the surface and within a 3 mm subsurface region.

The defect detection and recognition rate reached 99.7%, with a false positive rate of merely 1.7%. It realizes comprehensive, efficient, accurate identification and traceable detection of large areas of welds in steel-clad flooring.