文章摘要
寿文德,余立立,杨平,邢广振,胡兵.超声换能器的自易校准法及其在功率测量中的应用和它与辐射力法的关系[J].声学技术,2014,33(5):446~453
超声换能器的自易校准法及其在功率测量中的应用和它与辐射力法的关系
Self-reciprocity calibration method of ultrasonic transducer as well as its application in power measurement and relation with radiation force balance method
投稿时间:2014-04-22  修订日期:2014-08-09
DOI:10.3969/j.issn1000-3630.2014.05.012
中文关键词: 自易法  辐射力天平  声功率  辐射电导  发送电压(电流)响应  电压灵敏度
英文关键词: self-reciprocity method  radiation force balance  acoustic power  radiation conductance  transmitting voltage (current) response  voltage sensitivity
基金项目:the National Natural Science Foundation Committeeof China (Grant No. 81271597 ),and the Major Item of the Basic Researchof Shanghai Science and Technology Committee (Grant No.10JC0642).
作者单位E-mail
寿文德 上海交通大学附属第六人民医院, 上海 200233
上海超声医学研究所, 上海 200233 
binghu_stephen@163.com 
余立立 上海海事大学, 上海 201306  
杨平 中国计量科学研究院, 北京 100029  
邢广振 中国计量科学研究院, 北京 100029  
胡兵 上海交通大学附属第六人民医院, 上海 200233
上海超声医学研究所, 上海 200233 
 
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中文摘要:
      论述了电声互易原理和用于平面活塞型与球面聚焦换能器校准的自易法(Self Reciprocity Method, SRM)。介绍了一系列的定义和发送电压(电流)响应与电压灵敏度。阐述了SRM 与辐射力天平(Radiation Force Balance, RFB)法之间的关系。在1~25 MHz 频率范围内,对超声换能器校准和输出功率测量的实验显示,两种方法具有相近的准确度。SRM 法比RFB 法测量具有更高的信噪比和更好的稳定性。
英文摘要:
      The principles of electroacoustic reciprocity and self-reciprocity method (SRM) for the plane piston and the spherically focusing transducer are described. A series of definitions with uses of transmitting voltage (current) responses and voltage sensitivity are introduced. The relation of SRM with the radiation force balance (RFB) is expounded. Experiments in frequency range of 1.0~15 MHz show that the two methods are of close accuracy in calibration and output power measurement of ultrasonic transducer. The measurement by SRM is of high signal noise ratio and better stability than by RFB.
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