Signal Preparation & Spatial Alignment

Inspection Signal Preparation

Processed multidimensional signals acquired during periodic eddy-current inspections of steam-generator tubes.

Variations in probe velocity can shift otherwise comparable signal patterns. The processing pipeline therefore realigns inspection signals before they are compared.

Spatial Alignment

Probe displacement is reconstructed from the acquisition sequence and inspection speed. Known geometric landmarks, including tube-support-plate locations, are then used to refine the alignment between the signal and its physical position along the tube.

This provides a consistent basis for comparing signals acquired from geometrically similar tubes.