NDT

ACFM (Alternating Current Field Measurement)

Alternating Current Field Measurement (ACFM) is an electromagnetic technique for Non Destructive Testing detection and sizing of surface breaking cracks. It was derived from the methods used in Eddy Current Testing and works on all metals, ferrous or non-ferrous. Since it doesn’t require direct electrical contact with the surface it can work through coatings such as paint or rust.