[1]万广通,陈振乾,董卫,等.平面型热声转换装置的特性分析[J].东南大学学报(自然科学版),2012,42(2):313-317.[doi:10.3969/j.issn.1001-0505.2012.02.023]
 Wan Guangtong,Chen Zhenqian,Dong Wei,et al.Characteristic analysis of planar thermoacoustic transducer[J].Journal of Southeast University (Natural Science Edition),2012,42(2):313-317.[doi:10.3969/j.issn.1001-0505.2012.02.023]
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平面型热声转换装置的特性分析()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
42
期数:
2012年第2期
页码:
313-317
栏目:
数学、物理学、力学
出版日期:
2012-03-20

文章信息/Info

Title:
Characteristic analysis of planar thermoacoustic transducer
作者:
万广通 陈振乾 董卫 王红星 吴仲武 姚丽
东南大学能源与环境学院,南京 210096
Author(s):
Wan Guangtong Chen Zhenqian Dong Wei Wang Hongxing Wu Zhongwu Yao Li
School of Energy and Environment, Southeast University, Nanjing 210096, China
关键词:
热声 声压 效率 电功率 环境温度 温度场
Keywords:
thermoacoustic sound pressure efficiency electric power ambient temperature temperature field
分类号:
TB54
DOI:
10.3969/j.issn.1001-0505.2012.02.023
摘要:
利用热声效应制作出一种由加热层、绝缘层和储热层构成的平面型热声转换装置.对加热层输入交变电压信号时,由于焦耳效应及各层材料的不同热力学特性,其表面附近区域会产生相应的声波.通过对装置模型进行理论分析,推导出装置输出声压及效率的表达关系式,并利用高速数据采集系统及红外成像仪对装置工作特性进行了实验研究.结果表明:该平面型热声转换装置的输出声压和效率随输入电功率的增大而增大; 环境温度对装置输出声压的影响较小; 通过对装置表面静态温度场分布进行分析,得到装置结构的优化方法.该装置实现了电能、热能、声能之间的转换,具有无任何运动部件、频率可控、稳定性高等优点,因而可广泛用于电声换能领域.
Abstract:
Based on the thermoacoustic effect, a type of planar thermoacoustic transducer composed of a heating surface, an insulation layer and a thermal storage substrate is manufactured. When the alternative voltage signal is input to the heating surface, the sound wave can be obtained near the heating surface area due to the Joule heating effect and the different thermodynamic characteristics of the materials in each layer. Through the theoretical analysis of the transducer, the expression of the sound pressure and the efficiency are obtained. The operating characteristics of the transducer are studied by the high-speed data acquisition system and the infrared camera. The experimental results show that the output sound pressure and the efficiency of the transducer are proportional to the input electric power. The influence of the ambient temperature on the output sound pressure is small. The optimization methods of the transducer’s structure are indicated by analyzing the distribution of the static temperature field of the transducer’s surface. The conversion of electricity, thermal energy and sound energy can be realized by the transducer. And the transducer has the advantages of no moving parts, controllable frequency, and high stability. So it can be widely used in the electro-acoustic transducer field.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介: 万广通(1986—),男,硕士生; 陈振乾(联系人),男,博士,教授,博士生导师,zqchen@seu.edu.cn.
基金项目: 教育部科学技术研究重点资助项目(109073).
引文格式: 万广通,陈振乾,董卫,等.平面型热声转换装置的特性分析[J].东南大学学报:自然科学版,2012,42(2):313-317. [doi:10.3969/j.issn.1001-0505.2012.02.023]
更新日期/Last Update: 2012-03-20