压电能量

1、 theoretical analysis, has obtained the piezoelectricity Liang output voltage and the electrical energy theoretical model, but this is merely considers piezoelectricity Liang own factor alone to the power rate the influence rule. But in practical application, what often considered are the piezoelectricity electric power facility output, and its values size and the load resistance concern. Therefore, these rules have conducted systems research after the piezoelectricity electric power。

2、内容简介 在人们生活环境中，存在许多低频率的外界振动，如：车子与船舶行进时的 振动，人类行走时产生的晃等，而压电材料具有机电能量转换的特性，因此可将 振动能转换成电能，以达到能源回收再利用的目的。
本论文针对单层压电悬臂梁在其自由端放置质量块的情况下进行低频振动 的能量获取特性研究。
首先依据低频环境振动的特点，建立了以末端固定质量块 的压电悬臂梁结构作为换能元件的振动能量采集装置的模型；然后，在对压电材 料的特性、电流等效电路分析的基础上，推导出了能量采集装置谐振频率、输出 电压及输出电功率的计算模型公式；进一步，结合现有的台湾成功大学的试验结 果，对比了基于本人导出模型给出的理论结果和试验结果，二者相差不大表明本 文模型的有效性和准确性；最后，给出了压电悬臂梁能量获取特性随几何尺寸和 频率的变化规律。
第二部分：设计思想 图 1 压电悬臂梁的结构示意图 图 1 给出的模型为压电悬臂梁两层结构，以 PZT 为压电薄膜材料，以不锈 钢为压电悬臂梁型的结构。
通常微加工技术，在绝缘体上不锈钢存底上制备较厚 的压电薄膜，不锈钢层作为主要弹性层。
为了降低谐振频率，在自由端固定以质量块，使之在。

3、 electricity to constitute generates electricity the system and is called the breeze/ light to repair the system with each other, all having some common weakness because of the breeze and solar energies, such as the energy density low, the stability is bad and is subjected to the weather influence not to continue, have the strong weak conjugation, solar energy of seasonal to interrupted etc. day and night. Be generate electricity by the wind force and solar energy respectively to the p。

4、 and is called the breeze/ light to repair the system with each other, all having some common weakness because of the breeze and solar energies, such as the energy density low, the stability is bad and is subjected to the weather influence not to continue, have the strong weak conjugation, solar energy of seasonal to interrupted etc. day and night. Be generate electricity by the wind force and solar energy respectively to the power supply, the credibility of its power supply lowers con。