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Proceedings Paper

Wireless sensor self-diagnosis for piezoelectric actuating/sensing networks
Author(s): Seunghee Park; Sun-Kyu Park; Hyun-Ho Shin; Chung-Bang Yun
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Paper Abstract

Economic and reliable online health monitoring strategies are very essential for safe operation of civil, mechanical and aerospace structures. Furthermore, a PZT sensor self-diagnostic and validation procedure is quite important issue for successful impedance-based SHM system's implementation. This study presents online sensor self-diagnosis technique over structural health monitoring (SHM) strategies using wireless impedance sensor nodes. The wireless impedance sensor node incorporating a miniaturized impedance measuring chip, a microcontroller, and a radio-frequency (RF) telemetry is equipped with the capabilities for temperature-sensing, multiplexing of several sensors, and local data analysis. A temperature effects-free sensor self-diagnosis algorithm is embedded into the sensor node and its feasibility is examined from the experiments monitoring the integrity of each piezoelectric sensor on a wireless sensor network.

Paper Details

Date Published: 30 March 2009
PDF: 12 pages
Proc. SPIE 7292, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2009, 72920B (30 March 2009); doi: 10.1117/12.815466
Show Author Affiliations
Seunghee Park, Sungkyunkwan Univ. (Korea, Republic of)
Sun-Kyu Park, Sungkyunkwan Univ. (Korea, Republic of)
Hyun-Ho Shin, Korea Advanced Institute of Science and Technology (Korea, Republic of)
Chung-Bang Yun, Korea Advanced Institute of Science and Technology (Korea, Republic of)


Published in SPIE Proceedings Vol. 7292:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2009
Masayoshi Tomizuka, Editor(s)

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