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Ubiquitous Multi-Scale Structural Health Monitoring and Energy Harvesting System using...

...Piezoelectric SensorsDr. Seunghee Park, Assistant Professor
Department of Civil and Environmental Engineering
Department of U-City Design Engineering
Sungkyunkwan University - 300 Cheoncheon-dong
Jangan-gu Suwon Gyeonggi 440-746
KOREAA ubiquitous multi-scale structural health monitoring (SHM) and energy harvesting system using piezoelectric sensors is introduced. Firstly, SHM techniques based on the active sensing of piezoelectric materials are presented, which are broadly classified into 1) structural damage detection using impedance measurements, and 2) structural damage detection using guided wave propagations.Secondly, an energy harvesting technique using a piezoelectric patch that can convert mechanical vibrations to the electrical energy is investigated. Finally, by integrating both SHM and energy harvesting techniques with ubiquitous sensor network (USN), a ubiquitous multi- scale structural damage diagnostic system using a self-powered piezoelectric sensor node that consists of a embedded microprocessor, a miniaturized impedance measuring chip, a radio frequency (RF) telemetry module and a energy harvesting module is completed. In the near future, real-time wireless structural damage diagnosis for in-service infrastructures will be realized, implying a self-contained ubiquitous sensing system.

Audiences: Everyone Is Invited

Contact: Evangeline Reyes