Electrostatic induction power generator using hydroxyapatite ceramic electrets
Electrostatic induction power generator using hydroxyapatite ceramic electrets
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DOI：
10.1016/j.materresbull.2015.10.007
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发表时间：
2016-02-01
影响因子：
5.4
通讯作者：
Yamashita, Kimihiro
中科院分区：
文献类型：
--
作者：
Wada, Norio;Horiuchi, Naohiro;Yamashita, Kimihiro
本文基于羟基磷灰石（HAp）陶瓷驻极体的特性，从理论上和实验上考察了旋转驻极体发电机的静电感应发电性能；驻极体的两个表面具有相反的极性。与更常用的聚合物驻极体相比，HAp驻极体具有长期稳定性。理论功率输出与定子每块驻极体的总表面积、转子频率和驻极体的表面电势的平方成正比。此外，输出功率与转子和驻极体之间气隙的倒数的平方成正比。在不同的实验条件下得到的功率输出行为与我们的理论预测相吻合。我们的原型驻极体发电机在转子频率为24 Hz的情况下，最大输出功率为3.6 mu W。(C) 2015 Elsevier Ltd.版权所有。
In this paper, we examine the power generation performance of a rotational electret power generator theoretically and experimentally using electrostatic induction based on the properties of hydroxyapatite (HAp) ceramic electrets; the two surfaces of the electrets have opposing polarities. The HAp electrets have long-term stability in comparison with polymer electrets, which are more commonly used. The theoretical power output is proportional to the square of the total surface area of electrets per block of the stator, frequency of the rotor, and surface electric potential of the electret. Moreover, the power output is proportional to the square of the inverse of the air gap between the rotor and electrets. The behavior of power outputs obtained under different experimental conditions correlated with our theoretical prediction. The maximum output power generated by our prototype electret generator was 3.6 mu W with the frequency of the rotor being 24 Hz. (C) 2015 Elsevier Ltd. All rights reserved.