| 振动式压电发电机及其在无线传感器网络中的应用 |
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| 引用本文： | 温志渝,温中泉,贺学锋,廖海洋,刘海涛.振动式压电发电机及其在无线传感器网络中的应用[J].机械工程学报,2008,44(11):75-79. |
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| 作者姓名： | 温志渝 温中泉 贺学锋 廖海洋 刘海涛 |
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| 作者单位： | 重庆大学新型微纳器件与系统重点学科实验室,重庆,400044;重庆大学光电技术及系统教育部重点实验室,重庆,400044;重庆大学微系统研究中心,重庆,400044;重庆大学新型微纳器件与系统重点学科实验室,重庆,400044;重庆大学微系统研究中心,重庆,400044 |
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| 基金项目： | 国家高技术研究发展计划
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| 摘 要： | 为了预测基于悬臂梁结构的振动式压电发电机的固有频率、输出电压和输出功率等关键参数，通过理论分析得到了悬臂梁式压电发电机的理论模型，该模型比Roundy模型与试验结果更加吻合。针对故障诊断无线传感节点瞬时功率大、平均功率小的特点，设计了基于多振子的功率调节电路，当主回路超级电容器储存的电能可以使无线传感节点正常工作时，将主回路打开，开始进行测量和向监测中心传送数据。在轮船发动机上进行的现场试验表明振动式压电发电机可以为无线传感器节点供电。
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| 关 键 词： | 振动式压电发电机 数学模型 功率调节电路 无线传感节点 |
Vibration-based Piezoelectric Generator and Its Application in the Wireless Sensor Node |
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| WEN Zhiyu,WEN Zhongquan,HE Xuefeng,LIAO Haiyang,LIU Haitao.Vibration-based Piezoelectric Generator and Its Application in the Wireless Sensor Node[J].Chinese Journal of Mechanical Engineering,2008,44(11):75-79. |
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| Authors: | WEN Zhiyu WEN Zhongquan HE Xuefeng LIAO Haiyang LIU Haitao |
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| Affiliation: | Key Discipline Laboratory of New Micro/Nano Devices and Systems, Chongqing University Key Laboratory of Optoelectronic Technology and Systems of Ministry of Education, Chongqing University Microsystem Research Center, Chongqing University |
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| Abstract: | The mathematical model of the vibration-based piezoelectric generator with the proof mass supported by a cantilever is established.The formulas of the frequency,the output voltage and the output power are derived.Testing results show that this model is more accurate than Roundy's model.According to such characters as large transient power and small average power of the typical wireless sensor node,the power self-regulation circuit of the piezoelectric multi-shaker micro-generator is proposed.When the electr... |
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| Keywords: | Vibration-based piezoelectric generator Mathematical model Power self-regulation circuit Wireless sensor node |
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