Study on automatic power genrator

自动发电机的研究

基本信息

批准号：
14350078
负责人：
HOSAKA Hiroshi
金额：
$ 9.86万
依托单位：
The University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2004
项目状态：
已结题

项目摘要

The miniaturization of power sources are strongly required as the mobile information instruments are becoming popular. In this research, various types of automatic power generators are proposed to answer this requirement. The generators are attached to a machine or a human, and convert the kinetic energy into electric energy. To convert an external vibration into a relative movement of a permanent magnet and a coil installed in the generators, three types of converting mechanism are proposed : vibrating mass, rotating mass, and rotating reel. The relationships between output power and the mass, the vibrating frequency, the angular velocity, electro-mechanical impedance of armature are studied theoretically and experimentally. As a result, the mechanical and electrical conditions to make the output power maximum are clarified. In addition, a medical sensor, an RF circuit and a measurement instrument are driven by using the developed generators. The outline of each generator is shown bel … More ow.1.Vibration type generatorThis type is highly effective to the input vibration of high frequency and small amplitude such as the machine vibration. The size of the prototype is about 10 cm. It generates 50mW by the vibration input of 6Hz and 4mm p-p. The coil of armature is divided into several parts, and the electromechanical impedance of the vibrating mass is controlled. As a result, this generator operates by the maximum efficiency under arbitrary input amplitude.2.Rotation type generatorThis type is highly effective to the input vibration of low frequency and large amplitude such as in the human and the buoy movements. In addition, when the self-excited rotation is induced, the power generation efficiency is increased greatly. The self-excited rotation is a phenomenon that the inertia body rotates like the giant swing by the vibration input. It is shown that the self excitation rotation is able to be generated by the control of the impedance of rotating mass and the control of the initial rotating velocity under arbitrary input vibration. The output power of 500μW is obtained by the prototype generator of the size of a wristwatch. The generated electric power was charged in a super capacitor and a pulse oxygen-meter and an RF circuit are driven by it.3.Rotating reel type generatorA generator installed in a digital tape measure is produced. The armature rotates by natural rotation of the tape reel. A tape position sensor and a liquid crystal circuit are driven by the generated electric power. When the tape is pulled once, the liquid crystal is driven for a few seconds. Less

随着移动信息工具的流行，强烈需要电源的小型化。在这项研究中，提出了各种类型的自动发电机来回答此要求。发电机连接到机器或人类上，并将动能转换为电能。为了将外部振动转换为永久磁铁和发电机中安装的线圈的相对运动，提出了三种类型的转换机制：振动质量，旋转质量和旋转卷轴。在理论上和实验中研究了输出功率与质量之间的关系，振动频率，角速度，电机阻抗的电压。结果，阐明了最大输出功率的机械和电气条件。此外，医疗传感器，RF电路和测量仪器是通过使用开发的发电机来驱动的。显示了每个发电机的轮廓……更多的OW.1。振动类型生成器这种类型对高频和小放大器（例如机器振动）的输入振动非常有效。原型的大小约为10厘米。它通过6Hz和4mm P-P的振动输入产生50MW。电枢线圈分为几个部分，并控制振动质量的机电阻抗。结果，该发电机通过任意输入放大器下的最大效率运行。2.RotationType GeneratorThis类型对低频和大型放大器的输入振动非常有效，例如在人类和浮标中。另外，当引起自激发旋转时，发电效率会大大提高。自激发的旋转是一种现象，即惯性体像振动输入一样旋转。结果表明，自激发旋转能够通过控制旋转质量的阻抗以及在任意输入振动下对初始旋转速度的控制产生。 500μW的输出功率是通过手表大小的原型发电机获得的。生成的电力是在超级电容器中充电的，并且脉冲氧仪和RF电路由IT驱动。3。在数字磁带测量中安装的卷轴类型发电机发电机。电枢通过胶带卷轴的自然旋转旋转。胶带位置传感器和液晶电路由产生的电力驱动。将胶带拉一次时，将液晶驱动几秒钟。较少的