[1]林广义,汪炜,刘正埙,等.透镜式聚焦压电换能器超声功率测试分析[J].东南大学学报(自然科学版),2006,36(1):67-70.[doi:10.3969/j.issn.1001-0505.2006.01.014]
 Lin Guangyi,Wang Wei,Liu Zhengxun,et al.Ultrasonic power measurement and analysis of lens style focused piezoelectric transducer[J].Journal of Southeast University (Natural Science Edition),2006,36(1):67-70.[doi:10.3969/j.issn.1001-0505.2006.01.014]
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透镜式聚焦压电换能器超声功率测试分析()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
36
期数:
2006年第1期
页码:
67-70
栏目:
数学、物理学、力学
出版日期:
2006-01-20

文章信息/Info

Title:
Ultrasonic power measurement and analysis of lens style focused piezoelectric transducer
作者:
林广义 汪炜 刘正埙 董歧
南京航空航天大学机电学院, 南京 210016
Author(s):
Lin Guangyi Wang Wei Liu Zhengxun Dong Qi
College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
关键词:
压电换能器 声功率测试 激波
Keywords:
piezoelectric transducer ultrasonic power measurement shock wave
分类号:
TB552;O354.5
DOI:
10.3969/j.issn.1001-0505.2006.01.014
摘要:
从声学原理出发推导了作用于锥面反射靶的超声功率和辐射压力之间的关系,在此基础上设计了一种新型超声功率计,该超声功率计采用反射靶加吸收靶的结构形式,避免了反射声束之间的相互干扰.用校正螺母对该功率计进行了校准和误差分析,并采用3个不同角度的反射靶对该声功率计进行了验证.理论分析和实验表明:在0~200 W的测量范围内,采用3个不同角度的反射靶测量结果基本吻合,最大相对误差为10%左右; 被测量的透镜式聚焦压电换能器的电功率、声功率随着驱动电压的升高而增大,且声功率增加逐渐变缓,呈一定的非线性.
Abstract:
A novel ultrasonic power meter is designed according to the relationship between ultrasonic power and radiation pressure deduced from ultrasonic theory. It utilizes the structure of reflecting target plus absorbing target, which prevents the sound beam from intervening. It is calibrated by weights and validated by the reflecting targets with three different angles. The results demonstrate that the measuring results of reflecting targets with three different angles agree within the calibrated range of 200 W. And the overall uncertainty of the measuring results is below 10%. Also the results show that the electric power and the ultrasonic power of the transducer rise along with the driving voltage, while the increase of the ultrasonic power gradually shows down, showing a nonlinear character.

参考文献/References:

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相似文献/References:

[1]温任林,颜景平.压电式超声振动切削系统的研究[J].东南大学学报(自然科学版),1997,27(2):90.[doi:10.3969/j.issn.1001-0505.1997.02.016]
 Wen Renlin,Yan Jingping.Development of Ultrasonic Vibration Cutting System of Piezoelectric Form[J].Journal of Southeast University (Natural Science Edition),1997,27(1):90.[doi:10.3969/j.issn.1001-0505.1997.02.016]

备注/Memo

备注/Memo:
基金项目: 国家自然科学基金资助项目(50305011)、江苏省自然科学基金资助项目(BK2003090)、航空科学基金资助项目(04H52058).
作者简介: 林广义(1975—),男,博士生; 刘正埙(联系人),男,教授,博士生导师, zxliu@nuaa.edu.cn.
更新日期/Last Update: 2006-01-20