Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Power Generation Characteristics of Uni-morph Piezoelectric Cantilever with Different Vibration Angle

진동 각도에 따른 유니몰프 압전 캔틸레버의 발전특성연구

  • Kim, Chang Il (Electronic Materials & Component Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Yun, Ji Sun (Electronic Materials & Component Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Park, Woon-Ik (Electronic Materials & Component Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Jeong, Young-Hun (Electronic Materials & Component Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Hong, Youn Woo (Electronic Materials & Component Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Cho, Jeong-Ho (Electronic Materials & Component Center, Korea Institute of Ceramic Engineering & Technology) ;
  • Paik, Jong Hoo (Electronic Materials & Component Center, Korea Institute of Ceramic Engineering & Technology)
  • 김창일 (한국세라믹기술원 전자소재부품센터) ;
  • 윤지선 (한국세라믹기술원 전자소재부품센터) ;
  • 박운익 (한국세라믹기술원 전자소재부품센터) ;
  • 정영훈 (한국세라믹기술원 전자소재부품센터) ;
  • 홍연우 (한국세라믹기술원 전자소재부품센터) ;
  • 조정호 (한국세라믹기술원 전자소재부품센터) ;
  • 백종후 (한국세라믹기술원 전자소재부품센터)
  • Received : 2017.03.07
  • Accepted : 2017.03.21
  • Published : 2017.03.31
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Abstract

Energy source of a piezo-electric harvester is vibration. Sources of vibration are machineries operated with high frequencies, constructions and people operated with low frequencies and etc. In this study, we tried to figure out power generation properties over vibrations upon angles of a piezo-cantilever for applying them to movements of the construction and/or people, which are vibration sources at low frequencies. A uni-morph cantilever with a $59mm{\times}29mm{\times}0.2mm$ piezo-electric element attached on a $71mm{\times}46mm{\times}0.25mm$ copperplate was used. A spring was attached to the lower side of the cantilever and a mass was attached on the opposite side. Also, a structure with a specific angle which is an angle in between the ground and the cantilever was prepared and then, connected to a spring or the cantilever. Then, this structure was divided into the A-type and B-type and excited in the direction of z- axis. After that, the angle between the ground and the cantilever was changed and excited by 1 to 10 Hz upon the existence of a spring and/or a mass to compare power generation properties.

Keywords

References

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