The invention consists in a frequency selective acoustic transducer for directional sensing of guided waves. The transducer can be employed both for directional sensing and generation of guided waves.
| Patent title | Device, method and system for real time structural diagnostics with guided elastic waves |
|---|---|
| Thematic area | Industry, Digital and Security |
| Ownership | ALMA MATER STUDIORUM - UNIVERSITA' DI BOLOGNA |
| Inventors | Alessandro Marzani, Luca De Marchi, Nicola Testoni |
| Protection | Italy, Europe, United States |
| Licensing status | Available for development agreements, option, license and other exploitation agreements |
| Keywords | Actuators, Piezoelectric, Sensors, Dispersion compensation, Elastic waves, Smart embedded systems |
| Filed on | 16 April 2015 |
The assessment of the structural integrity of the modern aerospace, aeronautic, railway and railroad platforms is crucial for guaranteeing users safety. To this aim structural health monitoring systems allows for the early detection of damages, the evaluation of their progression, as well as the assessment of the effectiveness of repair actions by means of sensors glued or permanently embedded in the structure.
The aim of the invention is to allow for the integration of a structural health monitoring system in arbitrary complex structures, giving way to the realization of smart structure capable to autonomously perform structural health monitoring tasks, without requiring out-of-service time.
With respect to commercial systems, the proposed systems is characterized by
- possibility to be applied to both standard and composite materials
- reduced power consumption, volume and weight, allowing for reduced operating costs;
- reduced cabling complexity, giving way to reduced installation and maintenance costs.