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Proceedings Paper

Dynamic characterization of a soft elastomeric capacitor for structural health monitoring applications
Author(s): Hussam Saleem; Simon Laflamme; Filippo Ubertini
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Paper Abstract

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.

Paper Details

Date Published: 8 March 2014
PDF: 6 pages
Proc. SPIE 9061, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2014, 906115 (8 March 2014); doi: 10.1117/12.2045324
Show Author Affiliations
Hussam Saleem, Iowa State Univ. (United States)
Simon Laflamme, Iowa State Univ. (United States)
Filippo Ubertini, Univ. degli Studi di Perugia (Italy)


Published in SPIE Proceedings Vol. 9061:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2014
Jerome P. Lynch; Kon-Well Wang; Hoon Sohn, Editor(s)

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