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학술지 Sustainable Vibration Energy Harvesting Based on Zr-Doped PMN-PT Piezoelectric Single Crystal Cantilevers
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저자
문승언, 이성규, 이상균, 이영기, 양일석, 박강호, 김종대
발행일
200912
출처
ETRI Journal, v.31 no.6, pp.688-694
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.09.1209.0015
협약과제
09MB3300, 자가충전 전원모듈 기반 EPMIC 기술개발, 김종대
초록
In this paper, we present the results of a preliminary study on the piezoelectric energy harvesting performance of a Zr-doped PbMg 1/3Nb2/3O3-PbTiO3 (PMN-PZT) single crystal beam. A novel piezoelectric beam cantilever structure is used to demonstrate the feasibility of generating AC voltage during a state of vibration. The energy-harvesting capability of a PMN-PZT beam is calculated and tested. The frequency response of the cantilever device shows that the first mode resonance frequency of the excitation model exists in the neighborhood of several hundreds of hertz, which is similar to the calculated value. These tests show that several significantly open AC voltages and sub-mW power are achieved. To test the possibility of a small scale power source for a ubiquitous sensor network service, energy conversion and the testing of storage experiment are also carried out. Copyright © 2009 ETRI.
키워드
Cantilever, Piezoelectric, PMN-PZT, Vibration energy harvesting
KSP 제안 키워드
AC voltage, Cantilever structure, Energy Conversion, Energy Harvesting(EH), Frequency response(FreRes), Harvesting performance, Network service, PMN-PT piezoelectric single crystal, PMN-PZT, Preliminary study, Resonance frequency