What is a three-Dimensional (3D) sensor?
Every inspection unit uses a number of sensors to surround the MUI. Transverse (Longitudinal) sensors are distributed around the MUI on a plane perpendicular (parallel) to the length of the MUI. Only STYLWAN treats this sensor arrangement as a two-dimensional (2D) sensor array. Instead, everyone else treats each sensor as an individual that is isolated from its neighborhood resulting in a one-dimensional (1D) inspection system. STYLWANs three-dimensional (3D) sensor arrays use multiple 2D sensor arrays distributed appropriately along the MUI. The 3D concept and signal processing applies to any orientation or type of sensor (magnetic, electrical, thermal, optical, sound …). STYLWAN published in 1994 the extraction matrix concept; a mathematical procedure to convert 1D sensors to a 2D array.
