벤더형 모듈을 이용한 광대역 압전 하베스터 연구
Study of Broadband Piezoelectric Harvester using the Bender-Type Module
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초록
In this study, a bender-type piezoelectric energy harvester was fabricated and evaluated to compensate for the dis- advantages of high-power generation only in the resonance frequency range of a piezoelectric harvester using a piezo- electric cantilever. The generated power was investigated according to various changes in the vibration environment. Compared with the piezoelectric cantilever module, the bender-type piezoelectric module showed a larger number of peak voltages. The primary peak voltage shifted toward the low frequency when the spring was coupled to the bender-type piezoelectric module. The harvester of the three bender-type modules had a vibration frequency exceeding 1 mW in the 34-45 Hz range and generated 3.112 mW of power at the vibration frequency of 38 Hz. The harvester of the six bender- type modules had a vibration frequency exceeding 1 mW in the 31-45 Hz range and generated 3.081 mW of power at the vibration frequency of 35 Hz.
Abstract
In this study, a bender-type piezoelectric energy harvester was fabricated and evaluated to compensate for the dis- advantages of high-power generation only in the resonance frequency range of a piezoelectric harvester using a piezo- electric cantilever. The generated power was investigated according to various changes in the vibration environment. Compared with the piezoelectric cantilever module, the bender-type piezoelectric module showed a larger number of peak voltages. The primary peak voltage shifted toward the low frequency when the spring was coupled to the bender-type piezoelectric module. The harvester of the three bender-type modules had a vibration frequency exceeding 1 mW in the 34-45 Hz range and generated 3.112 mW of power at the vibration frequency of 38 Hz. The harvester of the six bender- type modules had a vibration frequency exceeding 1 mW in the 31-45 Hz range and generated 3.081 mW of power at the vibration frequency of 35 Hz.
참고문헌 (15)
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