In 1984, long before today’s high-res C-scans and AI-assisted flaw detection, a forward-thinking team at Battelle quietly mapped out the...

If you're scratching your head about permeability  in eddy current testing, you're not alone. Between relative permeability (μᵣ), the...

If you’ve ever stared blankly at some of Dr. Förster's impedance graphs, you’re not alone. There is a treasure-trove of information...

In the world of eddy current testing (ECT), few visual tools are as foundational as Dr. Friedrich Förster’s impedance plane diagrams....