Campus Units

Civil, Construction and Environmental Engineering, Electrical and Computer Engineering, Center for Nondestructive Evaluation (CNDE)

Document Type

Conference Proceeding

Conference

SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring

Publication Version

Published Version

Publication Date

3-8-2014

Journal or Book Title

Proceedings of SPIE

Volume

9061

Issue

906115

First Page

906115-1

Last Page

906115-6

Research Focus Area

Structural Engineering

DOI

10.1117/12.2045324

Conference Title

Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2014

Conference Date

March 9-13, 2014

City

San Diego, CA

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.

Comments

This proceeding is published as Hussam Saleem, Simon Laflamme, Filippo Ubertini, "Dynamic characterization of a soft elastomeric capacitor for structural health monitoring applications", Proc. SPIE 9061, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2014, 906115 (8 March 2014); doi: 10.1117/12.2045324. Posted with permission.

Copyright Owner

Society of Photo-Optical Instrumentation Engineers (SPIE)

Language

en

File Format

application/pdf

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