摘要
压电材料在受到周期的压力时,其表面产生周期的电压。压电材料与金属片作成压电振子,压电振子产生周期性振动,在其极面上不断激发电荷,把该电能贮存变换后作成压电发电机。研究了压电能量转移的原理,设计了压电能量转移电路,利用填谷电路代替普通电容进行了能量贮存与转换;进行稳压电路设计,设计了实验电路,运用振动台进行了实验,通过对系统所带负载进行了实验比较测试。实验效果表明,利用填谷电路代替普通的电容可提高压电发电机的带负载能力,该能量转移电路无需额外电源。
When the piezoelectric material is under cycle pressure,the cycle voltage is produced on its′surface.The piezoelectric materials is fabricated into piezoelectric vibrator with sheet metal,the periodic oscillation of piezoelectric vibrator will continue to inspire charge in its surface,the electric energy is stored and transformed to be made into piezoelectric generator.the transfer principle of pressure piezoelectric energy is studied,and the piezoelectric energy transfer circuit is designed.The energy is stored and converted by using the valley fill circuit to replace the ordinary capacitance,the stabilizing voltage circuit and the experiment circuit are designed,the experiment is carried out through the shaking table,and to compare test through the system load,The experimental results confirms that using the valley fill circuit to replace the ordinary can improve the piezoelectric generator load capacity,the energy transfer circuit has no additional power supply.
出处
《压电与声光》
CSCD
北大核心
2015年第1期109-112,共4页
Piezoelectrics & Acoustooptics
基金
国家自然科学基金资助项目(51377084)
苏州市职业大学成果创新基金资助项目(2012SZDCC06)
关键词
压电电源
换能
转移效率
填谷电路
piezoelectric power
energy transfer
transfer efficiency
the valley fill circuit
