Detection of tache-ovale defects in bidirectional lines (LR-IM-033)

On bidirectional lines, Tache-Ovale fatigue cracks in rail-heads may propagate vertically or at non-classic angles, and would not be detected by any methods now in B.R. use. A detector is needed to find these defects before they appear on track. This report shows the development of a system, which comprises...