Sensors and Interfaces for Structural Health Monitoring

Structural Health Monitoring (SHM) is the technique that allows to understand the health state of a structure. Its application is more and more widespread in the last decades, especially thanks to introduction of the Structural Damage Indicator Evaluation. In case of critical event, or simply for the passage of time, this evaluation allows to understand if a structure has a complete loss of functionality, or, more probably, if it is simply no longer in optimal condition. In the latter case, it will be possible to calibrate the most adequate and targeted interventions. In this work an application that allows to observe the structure functionality over time and to find possible damages is presented. In this case, the reference structure is a steel bar. Its monitoring is made possible using a microcontroller and two digital triaxial accelerometers. The data returned are then suitably processed, so it is possible to determine the identification of the damage indicator in the event that the structure was perturbed.