Wireless sensor self-diagnosis for piezoelectric actuating/sensing networks

Seunghee Park; Sun-Kyu Park; Hyun-Ho Shin; Chung-Bang Yun

doi:10.1117/12.815466

30 March 2009 Wireless sensor self-diagnosis for piezoelectric actuating/sensing networks

Seunghee Park, Sun-Kyu Park, Hyun-Ho Shin, Chung-Bang Yun

Proceedings Volume 7292, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2009; 72920B (2009) https://doi.org/10.1117/12.815466
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2009, San Diego, California, United States

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.

Citation Download Citation

Seunghee Park, Sun-Kyu Park, Hyun-Ho Shin, and Chung-Bang Yun "Wireless sensor self-diagnosis for piezoelectric actuating/sensing networks", Proc. SPIE 7292, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2009, 72920B (30 March 2009); https://doi.org/10.1117/12.815466

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