多振子压电发电机的输出特性

阚君武; 王淑云; 彭少锋; 张忠华; 曾平; 程光明; 付晓庆

doi:10.3788/OPE.20111909.2108

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多振子压电发电机的输出特性

微纳技术与精密机械 | 更新时间：2020-08-12

- 多振子压电发电机的输出特性
- Output performance of piezoelectric generators with multi-vibrators
- 光学精密工程 2011年19卷第9期页码：2108-2116
- 作者机构：
  
  1. 浙江师范大学精密机械研究所,浙江金华,321004
  2. 吉林大学机械科学与工程学院,吉林长春,130025
  3. 浙江大学数理信息学院,浙江金华,321004
- 作者简介：
- 基金信息：
  
  国家自然科学基金资助项目(No.51075371)();浙江省自然科学基金资助项目(No.Y4110315,Y1110529)()
- DOI：10.3788/OPE.20111909.2108
  中图分类号： TM35;TN384
- 收稿日期：2010-12-07，
  
  修回日期：2011-02-22，
  
  网络出版日期：2011-09-26，
  
  纸质出版日期：2011-09-26
- 稿件说明：
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阚君武, 王淑云, 彭少锋, 张忠华, 曾平, 程光明, 付晓庆. 多振子压电发电机的输出特性[J]. 光学精密工程, 2011,19(9): 2108-2116

KAN Jun-wu, WANG Shu-yun, PENG Shao-feng, ZHANG Zhong-hua, ZENG Ping, CHENG Guang-ming, FU Xiao-qing. Output performance of piezoelectric generators with multi-vibrators[J]. Editorial Office of Optics and Precision Engineering, 2011,19(9): 2108-2116
阚君武, 王淑云, 彭少锋, 张忠华, 曾平, 程光明, 付晓庆. 多振子压电发电机的输出特性[J]. 光学精密工程, 2011,19(9): 2108-2116 DOI： 10.3788/OPE.20111909.2108.

KAN Jun-wu, WANG Shu-yun, PENG Shao-feng, ZHANG Zhong-hua, ZENG Ping, CHENG Guang-ming, FU Xiao-qing. Output performance of piezoelectric generators with multi-vibrators[J]. Editorial Office of Optics and Precision Engineering, 2011,19(9): 2108-2116 DOI： 10.3788/OPE.20111909.2108.

摘要

为提高多振子压电发电机的输出能力及有效频带宽度

从理论及试验两方面研究了各压电振子直接串/并联及经整流桥串/并联时的输出电压特性。结果表明

压电振子结构及数量相同时

经整流桥串/并联输出的电压及频带宽度均优于直接串/并联输出的电压及频带宽度

且压电振子经整流桥串联输出方式优于并联输出方式

其电压波动也较小。最后

制作了3个压电振子构成的发电装置

并进行了压电振子不同连接方式时的输出电压对比试验。试验结果显示

各压电振子独立发电产生高于10 V电压的频率段分别为143.1~148.1 Hz

160~166.2 Hz

173.1~184.3 Hz

而经整流桥串联输出10 V电压时的连续频率段增至141.8~190 Hz

证明了压电振子经整流桥串联可有效提高多振子发电机的输出电压和频带宽度。

Abstract

To increase frequency bands and the applicability in vibration environments

a piezoelectric generator consisted of multi-vibrators was presented. The output performance of the piezoelectric generator connected with vibrators in different methods (direct serial/parallel-connection

serial/parallel-connection with rectifiers) was studied theoretically and experimentally. The research results show that the piezoelectric generators connected with vibrators in serial/parallel through rectifiers achieves higher output voltages and wider frequency bands than those connected with vibrators directly. Moreover

the serial-connection piezoelectric generator takes advantages over the parallel-connection one in output voltages and frequency bands. A piezoelectric generator consisted of three cantilevers was fabricated and tested with the vibrators connected in different ways. With the output voltage beyond 10 V

the individual frequency bands of the three unconnected cantilevers are 143.1-148.1 Hz

160-166.2 Hz and 173.1-184.3 Hz

respectively. However

the total frequency band for output voltage beyond 10 V is extended to 141.8-190 Hz as the cantilevers are connected in serial with rectifiers.

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Keywords

references

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