A hands-on training app for weld inspection. This 2D simulator lets you move a virtual probe, adjust UT machine settings (gain, range, delay, angle, velocity), and watch how sound beams reflect inside test parts. Defects trigger realistic echoes on the A-scan, helping learners practice locating and identifying flaws. Includes options to show/hide beams and defects, apply gates, DAC curves, and swap between different part geometries.