Civil, Construction and Environmental Engineering, Electrical and Computer Engineering, Center for Nondestructive Evaluation (CNDE)
SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring
Journal or Book Title
Proceedings of SPIE
Research Focus Area
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2014
March 9-13, 2014
San Diego, CA
A novel thin film sensor consisting of a soft elastomeric capacitor (SEC) for meso-scale monitoring has been developed by the authors. Each SEC transduces surface strain into a measurable change in capacitance. In previous work, the authors have shown that the performance of the SEC compares well with conventional resistive strain gauges, providing a resolution of 25 με using an inexpensive off-the-shelf data acquisition system for capacitance measurements. Here, we further the understanding of the thin film sensor by characterizing its dynamic behavior. The SEC is subjected to dynamic loads in bending mode. The study of Fourier and wavelet transforms indicates that the sensor can be used to identify dynamic inputs. Overall results demonstrate the promising capabilities of the thin film sensor at dynamic monitoring of civil structures.
Society of Photo-Optical Instrumentation Engineers (SPIE)
Saleem, Husaam; Laflamme, Simon; and Ubertini, Filippo, "Dynamic characterization of a soft elastomeric capacitor for structural health monitoring applications" (2014). Civil, Construction and Environmental Engineering Conference Presentations and Proceedings. 74.
Civil Engineering Commons, Dynamics and Dynamical Systems Commons, Electrical and Electronics Commons, Signal Processing Commons, Structural Engineering Commons, VLSI and Circuits, Embedded and Hardware Systems Commons