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| 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(英文) | |
| 引用本文： | 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(英文)[J].声学技术,2014,33(5):446-453. |
| 作者姓名： | 寿文德 余立立 杨平 邢广振 胡兵 |
| 作者单位： | 1. 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 2. 上海海事大学,上海,201306 3. 中国计量科学研究院,北京,100029 |
| 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). |
| 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。 |
| 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 |
| 收稿时间： | 2014/4/22 0:00:00 |
| 修稿时间： | 2014/8/9 0:00:00 |
Self-reciprocity calibration method of ultrasonic transducer as well as its application in power measurement and relation with radiation force balance method |
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| SHOU Wen-de,YU Li-li,YANG Ping,XING Guang-zhen and HU Bing.Self-reciprocity calibration method of ultrasonic transducer as well as its application in power measurement and relation with radiation force balance method[J].Technical Acoustics,2014,33(5):446-453. | |
| Authors: | SHOU Wen-de YU Li-li YANG Ping XING Guang-zhen and HU Bing |
| Affiliation: | Shanghai Jiao Tong University affiliated Sixth People''s Hospital, Shanghai 200233, China;Shanghai Institute of ultrasound in medicine, Shanghai 200233, China;Shanghai Maritime University, Shanghai 201306, China;National Institute of Metrology, Beijing 100029, China;National Institute of Metrology, Beijing 100029, China;Shanghai Jiao Tong University affiliated Sixth People''s Hospital, Shanghai 200233, China;Shanghai Institute of ultrasound in medicine, Shanghai 200233, China |
| Abstract: | 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. |
| Keywords: | self-reciprocity method radiation force balance acoustic power radiation conductance transmitting vol-tage (current) response voltage sensitivity |
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