A laser-micromachined multi-modal resonating power transducer for wireless sensing systems
A laser-micromachined multi-modal resonating power transducer for wireless sensing systems
复制标题
DOI：
10.1016/s0924-4247(02)00033-x
复制
发表时间：
2002-04-01
影响因子：
4.6
通讯作者：
Wen, ZY
中科院分区：
文献类型：
--
作者：
Ching, NNH;Wong, HY;Wen, ZY
本文介绍了一种总体积约为1 cm（3）的振动感应发电机的开发，该发电机使用激光微加工弹簧，根据法拉第感应定律将机械能转换为有用的电能。该项目的目标是创建一个最小尺寸的发电机，能够产生足够的电压来驱动低功耗IC和/或微传感器，用于存在环境机械振动的应用。到目前为止，我们已经制造了总体积为1 cm（3）的发生器，能够产生高达4.4 V的峰峰值，其最大RMS功率接近830 μ W，负载电阻为1000 Ω。产生该电能所需的机械振动具有范围从60到110 Hz的频率，具有类似于200 μ m的振幅。发电机被证明在不同的谐振模式下产生足够的功率。我们已经证明，该发生器可以驱动红外（IR）发射机发送140毫秒脉冲串每分钟，也是一个914.8兆赫调频无线温度传感系统。(C)出版社：Elsevier Science B. V.
This paper presents the development of a vibration-induced power generator with total volume of similar to1 cm(3) which uses laser-micromachined springs to convert mechanical energy into useful electrical power by Faraday's law of induction. The goal of this project is to create a minimally sized electric power generator capable of producing enough voltage to drive low-power ICs and/or microsensors for applications where ambient mechanical vibrations are present. Thus far, we have fabricated generators with total volume of 1 cm(3) that are capable of producing up to 4.4 V peak-to-peak, which have a maximum RMS power of similar to830 muW with loading resistance of 1000 Omega. The mechanical vibration required to generate this electrical energy has frequencies ranging from 60 to 110 Hz with similar to200 mum amplitude. The generator was shown to generate sufficient power at different resonating modes. We have demonstrated that this generator can drive an infrared (IR) transmitter to send 140 ms pulse trains every minute, and also a 914.8 MHz FM wireless temperature sensing system. (C) 2002 Published by Elsevier Science B.V.