Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Design and analysis of ZnO piezoelectric micro power generators with low frequency

저주파수용 ZnO 압전 마이크로 전원의 설계와 분석

  • 정귀상 (울산대학교 전기전자정보시스템공학부) ;
  • 윤규형 (울산대학교 전기전자정보시스템공학부)
  • Published : 2009.09.30
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Abstract

This paper describes the characteristics of piezoelectric micro power generators by the ANSYS FEA(finite element analysis). The micro power generator was designed to convert ambient vibration energy to electrical power as a ZnO piezoelectric material. To find optimal model in low vibration ambient, the shape of power generator was changed with different membrane width, thickness, length, and proof mass size. Using the ANSYS modal analysis, bending mode and stress distribution of optimal model were analyzed. Moreover, the displacement with the frequency range was analyzed by harmonic analysis. From the simulation results, the resonance frequency of optimal model is about 373 Hz and investigate the possibility of ZnO micro power generator for ambient vibration applications.

Keywords

References

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