采用0.71Pb(Mg1/3Nb2/3)O3-0.29PbTiO3单晶材料悬臂驱动低频压电能量采集器( Cantilever driving low frequency piezoelectric energy harvester using single crystal material 0.71Pb(Mg1/3Nb2/3)O3-0.29PbTiO3 )

C Xu R Bo W Di L Zhu J Jie L Li L Long X Zhao H Luo W Dong Practical/ cantilevers energy harvesting lead compounds low-power electronics magnesium compounds niobium compounds piezoelectric transducers titanium compounds wireless sensor networks/ CANDLE cantilever driving low frequency energy harvester cantilever beam cymbal transducers piezoelectric single crystal material electrical properties excitation frequency load resistances Low resonance frequency wireless sensors low-power electronics frequency 102 Hz mass 4.2 g Pb(Mg 0.33Nb 0.67)O 3-PbTiO 3/ B8450 Energy harvesting B2860A Piezoelectric devices B7230 Sensing devices and transducers/ frequency 1.02E+02 Hz mass 4.2E-03 kg/ PbMg0.33Nb0.67O3-PbTiO3/int PbMg0.33Nb0.67O3/int Mg0.33/int Nb0.67/int PbTiO3/int TiO3/int O3/int Mg/int Nb/int Pb/int Ti/int O/int PbMg0.33Nb0.67O3/ss Mg0.33/ss Nb0.67/ss PbTiO3/ss TiO3/ss O3/ss Mg/ss Nb/ss Pb/ss Ti/ss O/ss

提出了一种基于0.71Pb(Mg1/3Nb2/3)O3-0.29PbTiO3压电单晶的高性能压电能量采集器悬臂梁驱动低频能量采集器(CADLE)。系统地研究了蜡烛在不同质量、不同激励频率、不同负载电阻下的电学特性。在3.2g(g=9.8m/s2)加速度下,在102Hz处测得峰值电压38V,最大功率3.7mW,验证质量4.2g。低谐振频率和高功率输出性能证明了该器件在无线传感器和低功耗电子设备的能量收集方面的前景。

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