Paper Title:
Piezoelectric Impedance Sensor-Based Structural Health Monitoring for Critical Members of Civil Infrastructures
  Abstract

This paper presents novel structural health monitoring techniques for critical members of civil structures using electro-mechanical impedance sensors. The basic concept of this technique is to monitor critical locations of a structure for changes in structural impedance that would indicate imminent damage. In this paper, principal hardware and software issues on this topic are reviewed. An active sensing node incorporating on-board microprocessor and radio frequency telemetry is introduced in a sense of tailoring wireless sensing technology to the impedance method. A data compression algorithm using a principal component analysis is embedded into the on-board chip of the active sensing node. Finally, a method for compensating the temperature effects on the impedance measurements using cross-correlation analysis with effective frequency shifts is presented.

  Info
Periodical
Edited by
Pietro VINCENZINI and Fabio CASCIATI
Pages
395-400
DOI
10.4028/www.scientific.net/AST.56.395
Citation
C. B. Yun, S. H. Park, "Piezoelectric Impedance Sensor-Based Structural Health Monitoring for Critical Members of Civil Infrastructures", Advances in Science and Technology, Vol. 56, pp. 395-400, 2008
Online since
September 2008
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