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http://dx.doi.org/10.5369/JSST.2017.26.2.107

Power Generation Characteristics of Uni-morph Piezoelectric Cantilever with Different Vibration Angle  

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)
Publication Information
Journal of Sensor Science and Technology / v.26, no.2, 2017 , pp. 107-113 More about this Journal
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
Piezoelectric Transducer; Sensor Node; Energy Harvester; Handheld; Pedestrian;
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Times Cited By KSCI : 5  (Citation Analysis)
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