Piezoelectric Active Sensor Self-Diagnostics Using Electrical Admittance Measurements
- 24 January 2006
- journal article
- Published by ASME International in Journal of Vibration and Acoustics
- Vol. 128 (4), 469-476
- https://doi.org/10.1115/1.2202157
Abstract
This paper presents a piezoelectric sensor self-diagnostic procedure that performs in situ monitoring of the operational status of piezoelectric materials used for sensors and actuators in structural health monitoring (SHM) applications. The sensor/actuator self-diagnostic procedure, where the sensors/actuators are confirmed to be functioning properly during operation, is a critical component to successfully complete the SHM process with large numbers of active sensors typically installed in a structure. The premise of this procedure is to track the changes in the capacitive value of piezoelectric materials resulting from the degradation of the mechanical/electrical properties and its attachment to a host structure, which is manifested in the imaginary part of the measured electrical admittances. This paper concludes with an experimental example to demonstrate the feasibility of the proposed procedure.Keywords
This publication has 25 references indexed in Scilit:
- Adhesive Layer Effects in Surface-Mounted Piezoelectric ActuatorsJournal of Intelligent Material Systems and Structures, 2002
- Control Stability Analysis of Smart Beams with Debonded Piezoelectric Actuator LayerAIAA Journal, 2002
- A Modified Electro-Mechanical Impedance Model of Piezoelectric Actuator-Sensors for Debonding Detection of Composite PatchesJournal of Intelligent Material Systems and Structures, 2002
- Effects of piezoelectric sensor/actuator debonding on vibration control of smart beamsInternational Journal of Solids and Structures, 2001
- Sensing and actuating behaviours of piezoelectric layers with debonding in smart beamsSmart Materials and Structures, 2001
- Embedded Self-Sensing Piezoelectric Active Sensors for On-Line Structural IdentificationJournal of Vibration and Acoustics, 2001
- Damage diagnosis using time series analysis of vibration signalsSmart Materials and Structures, 2001
- On the electroelastic behaviour of a thin piezoelectric actuator attached to an infinite host structureInternational Journal of Solids and Structures, 2000
- Experimental investigation of composite beams with piezoelectric actuation and debondingSmart Materials and Structures, 1998
- Bending and torsion models of beams with induced-strain actuatorsSmart Materials and Structures, 1996