캔틸레버형 모듈을 이용한 광대역 압전 하베스터 개발 및 평가
Development and Evaluation of Broadband Piezoelectric Harvesters using a Cantilever-Type Module
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초록
In cantilever type piezoelectric energy harvester, the amount of power generation decreases rapidly when outside a certain frequency. The thickness and weight of the cantilever metal plate were modified to develop cantilevers that could produce high power over a widefrequency range. The thicker the cantilever, the higher the power in the higher frequency range. As the weight of the mass increased, the cantilever tended to generate higher power, and the frequency band decreased. A 0.6 mm metal plate cantilever that had a mass of 3.3 g generated power that exceeded 3 mW within the 91–102 Hz range, with average and output values of 9.484 mW and 20.748 mW, respectively, at 99 Hz.
Abstract
In cantilever type piezoelectric energy harvester, the amount of power generation decreases rapidly when outside a certain frequency. The thickness and weight of the cantilever metal plate were modified to develop cantilevers that could produce high power over a widefrequency range. The thicker the cantilever, the higher the power in the higher frequency range. As the weight of the mass increased, the cantilever tended to generate higher power, and the frequency band decreased. A 0.6 mm metal plate cantilever that had a mass of 3.3 g generated power that exceeded 3 mW within the 91–102 Hz range, with average and output values of 9.484 mW and 20.748 mW, respectively, at 99 Hz.
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