On control strategies for avoiding loss of information in non-destructive testing

This study takes place in the framework of non-destructive testing. Based on energy invariants, one can derive boundary quantities which could help to detect damages in a structure. Since only a small part of a structure is equipped with sensors, a lot of information may be lost through the boundary where there is no sensor. In this article, we study several control strategies in order to focus most of the information contained in the energy invariant used, to the sensors.