| 학회 |
한국재료학회 |
| 학술대회 |
2011년 봄 (05/26 ~ 05/27, 제주 휘닉스 아일랜드) |
| 권호 |
17권 1호 |
| 발표분야 |
C. Energy and the Environment Technology(에너지 및 환경재료) |
| 제목 |
Characterization of High Power Piezoelectric Energy Scavenging Device based on PMN-PT Piezoelectric Single Crystal |
| 초록 |
In this paper, we present the calculations and results of vibration-energy-scavenging performances based on piezoelectric single crystal beam. Using the measured mechanical damping ratio and electro-mechanical coupling coefficient of the novel cantilever structure device, we calculated the output performances and compared them with the measured results. The device based on a bimorph cantilever structure with a proof mass was designed to have a natural resonance frequency of about 60 Hz, of which the energy-scavenging capability of piezoelectric single crystal was measured. These results show that several tens of AC voltages and a few mW power were achieved under 0.1 grms vibration condition. And using this device and the commercial power management circuit, Li-ion battery charging experiment was done also. |
| 저자 |
문승언, 이상균, 이영기, 김광만, 양일석, 양우석, 김종대
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| 소속 |
한국전자통신(연) |
| 키워드 |
Vibration-energy-scavenging; piezoelectric; cantilever
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| E-Mail |
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