Detecting defects in weldments

摘要

A method of detecting defects in a welded metallic structure, comprising clamping or otherwise attached an ultrasonic transducer on or adjacent to a weld, and emit signals Lamb wave ultrasonic, such that signals propagate along the weld seam that acts as a waveguide, and detecting reflections of the guided signals from the waveguide, which may be indicative of defects inside the weld, or adjacent thereto.