| 周期性热激励下压电陶瓷的热释电特性研究 |
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| 引用本文： | 吴仲武,董卫,姚丽,张庆,乔正辉. 周期性热激励下压电陶瓷的热释电特性研究[J]. 热科学与技术, 2012, 0(3): 277-281 |
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| 作者姓名： | 吴仲武 董卫 姚丽 张庆 乔正辉 |
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| 作者单位： | 东南大学能源与环境学院 |
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| 基金项目： | 教育部科学技术研究重点资助项目(109073) |
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| 摘 要： | 设计了一套研究压电陶瓷热电特性的实验系统,并基于热释电效应研究了压电陶瓷在周期性热激励下的热电特性,拟合出了周期性热激励下压电陶瓷中产生的电压与电流的表达式。模拟和实验结果表明,当采用周期性的聚焦光线照射在压电陶瓷表面时,压电陶瓷表面的温度和正负极之间的电压也会周期性的变化,且变化的频率与调频装置的频率一致。
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| 关 键 词： | 周期性热激励 热电特性 频率 |
Study on pyroelectric characteristic of piezoelectric ceramic excited by periodic thermal excitation |
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| WU Zhong-wu,DONG Wei,YAO Li,ZHANG Qing,QIAO Zheng-hui. Study on pyroelectric characteristic of piezoelectric ceramic excited by periodic thermal excitation[J]. Journal of Thermal Science and Technology, 2012, 0(3): 277-281 |
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| Authors: | WU Zhong-wu DONG Wei YAO Li ZHANG Qing QIAO Zheng-hui |
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| Affiliation: | School of Energy and Environment,Southeast University,Nanjing 210096,China |
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| Abstract: | An experimental system was designed to study the pyroelectric characteristic of the piezoelectric ceramic.Based on pyroelectric effect,the pyroelectric characteristic of the piezoelectric ceramic under a condition of periodic thermal excitation was studied,and the formulas of voltage and current of the piezoelectric ceramic were also concluded.Results of the simulation and experiments show that the voltage of the piezoelectric ceramic changes periodically when the piezoelectric ceramic is illuminated by a periodic focused light.The frequency of the voltage is consistent with the frequency of the frequency converter. |
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| Keywords: | periodic thermal excitation pyroelectric characteristic frequency |
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