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Proceedings Paper

Monitoring the health of mechanical systems with smart materials: signal processing issues
Author(s): Larry P. Heck
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Paper Abstract

Smart structures generally consist of abase material (e.g., composite) containing large numbers of embedded and interconnected sensors, actuators, and processors. With these embedded components, smart structures have a built-in ability to sense and respond to environmental stimuli without requiring externally mounted transducers. Research is currently underway to develop smart structures for a variety of applications, including the self-diagnosis of the structure for damage detection and health monitoring. Industries that have a particular interest in this area include aerospace, marine, ground transportation, power utilities, and manufacturing. In recent years, the research has focused on the materials science issues related to embedding the transducers. However, significant barriers still remain that are preventing wide spread use of smart materials for health monitoring. This paper will discuss the barriers caused by the difficult problem of integrating and processing the wealth of information from the large numbers of transducers.

Paper Details

Date Published: 25 April 1995
PDF: 24 pages
Proc. SPIE 10279, Digital Signal Processing Technology: A Critical Review, 1027905 (25 April 1995); doi: 10.1117/12.204210
Show Author Affiliations
Larry P. Heck, SRI International (United States)

Published in SPIE Proceedings Vol. 10279:
Digital Signal Processing Technology: A Critical Review
Panos Papamichalis; Robert D. Kerwin, Editor(s)

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