The DEFECTOARRAY sensor by FOERSTER is the eddy current technology of the future. The patented sensor comprises eight diameter segments with one clearance winding each and facilitates ultra-dynamic clearance compensation. This significantly increases the reproducibility of the results and reduces rejects. Dimension variations, eccentricity, entry effects, and wobble are also reduced. The defect position is recorded in a longitudinal direction as well as within the diameter. The test coils come in diameters from 18 mm to 100 mm and are compatible with sensor systems H, P, and M.