As most infrastructure have low natural frequency for vibration, an energy harvester to operate wireless sensors for them should be aimed to low frequency and have high output efficiency. This study proposes the energy harvester with parallel-connected single crystal ceramic for low frequency in order to gain enhanced efficiency. The performance is confirmed by the experiment using the acceleration data of hangers in Yeongjong Bridge.

• 최동호(한양대학교 건설환경공학과 교수, 공학박사) | Choi, Dong Ho
• 정희범(한양대학교 건설환경공학과 석사과정) | Jung, Hoi Bum
• 박민우(한양대학교 건설환경공학과 석사과정) | Park, Min Woo Corresponding Author