The laboratory provides structural monitoring services (SHM, Structural Health Monitoring), in the fields of civil and industrial engineering, aimed at:
- evaluate the structural integrity and define security levels;
- build early warning systems and real - time monitoring;
- identify structural abnormalities and assess their impact on performance expectations;
- make the testing of operational facilities and infrastructure.
STRUCTURAL MONITORING WITH FIBER OPTIC SENSORS
Structural monitoring using fiber optic sensors is carried out on civilian facilities / infrastructure, cultural and architectural heritage and on industrial structures or components. The used in fiber optic sensors, of two different types (punctual and distributed), allow to monitor the deformation and the thermal state of the structures on which they are positioned, with a resolution of the order of με and the tenth of ° C, respectively. They can also monitor vibration and corrosive phenomena affecting the element under examination.
The sensors can be incorporated within the element to be monitored or applied on its surface. In the latter case, CETMA has developed smart devices in composite material, inside of which have been inserted, in phase of production, the fiber optic sensors (Smart Patch - plate, Smart Rebar - bar, Smart Plate - plate and Smart textile - tissue).
In the case of sensors embedded in the component, the monitoring can start at the production phase of the component, making the monitoring of the production process through the control of the main process parameters.
STRUCTURAL MONITORING WITH PIEZOELECTRIC SENSORS
Monitoring using piezoelectric sensors is carried out on facilities / industrial components. The sensors used in thin film piezoelectric material layer allow you to monitor the deformation of the structures on which they are placed, with a resolution of about με. Piezoelectric accelerometers allow vibration monitoring.
The sensors can be configured via the appropriate control/monitoring electronic, in order to communicate wirelessly with the data acquisition unit.
STRUCTURAL MONITORING WITH STRAIN GAGES
Monitoring via electrical resistance strain gauges is carried out on civilian facilities / infrastructure, cultural and architectural heritage and on facilities / industrial components. These devices allow you to monitor the deformation status of the structures on which they are placed, with a resolution of about με, in single-axis mode, biaxial or triaxial.
STRUCTURAL MONITORING WITH LVDT
Monitoring via Linear Voltage Differential Transformer is made on civil structures / infrastructures, cultural and architectural heritage and on facilities / industrial components. This device allows you to monitor the movements of the structures on which it is placed.