If large areas are to be scanned, conventional eddy current testing can be very time-consuming. In addition, there is a risk of unchecked areas due to the manual probe guidance. The ECA module can be used to operate large and shape-matched array probes. This allows large areas to be scanned quickly and without unchecked areas.

Array probes consist of several individual sensors, which are arranged e.g. in a row in a housing. In this way, an area can be scanned with several probes. The resolution of a single probe is still achieved.