Structural Heath Monitoring

Structural Health Monitoring (SHM) continuously gives, during the life of a structure, a diagnosis of the “state” of the constituent materials, of the different parts, and of the full assembly of these parts constituting the structure as a whole. We develop customised system using following techniques

Impedance based SHM techniques: Working principle is supplying electric power, sensing through PZT sensors, hence through the help of signature obtained, we detect, monitor and give the best solution option.

Data Fusion techniques: Used principle in this technique is same as in Impedance based approach but in this process of integrating data and knowledge representing the same real world object in consistent, accurate, and useful representation.

Vibration Control Technique: Commonly used technique, depends on Vibration applied from the sensors, Damping, and signature getting from system. Difference shown in signature through system can help to predict the defect/risk zone on the structure.

Acoustic emission (AE) Technique: Used to diagnostic of overall structural integrity, detection, location, identification and assessment of flaws/faults. It is continuous or periodic monitoring used in wireless and wired technology. In this echo of sound is measured.

Smart sensors wireless technology: Recent development and applications of smart sensors and sensing systems have a wide area of structural health monitoring including Optical Fiber Sensors (OFS), piezoelectric sensors, smart wireless sensors, and vision-based displacement measurement systems. They have been developed to complement the limitations of the conventional sensors such as electric resistance strain gauges, wired accelerometers, and extensometers, and to measure new types of structural characteristics such as electromechanical impedances and guided waves. We do research in Wireless smart sensing system for full scale structure.