| 利用超声共振法测量声速和声衰减系数 |
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| 引用本文： | 于连生.利用超声共振法测量声速和声衰减系数[J].海洋技术,1999,18(3):38-42. |
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| 作者姓名： | 于连生 |
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| 作者单位： | 国家海洋局海洋技术研究所!天津300111 |
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| 摘 要： | 本文介绍利用超声共振法测量声速和声衰减系数的原理及自来水和乙醇的测量结果。文中首次导出了超声共振腔的 Ｑ 值和声衰减系数的关系，为干涉仪法精确测量声衰减系数提供了理论依据，并介绍了一种实用的测量方法。
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| 关 键 词： | 超声共振 声速 衰减系数 |
Measure Ultrasonic Sound Velocity and Attenuation Coefficient by Ultrasonic Syntonic Method |
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| Yu Liansheng.Measure Ultrasonic Sound Velocity and Attenuation Coefficient by Ultrasonic Syntonic Method[J].Ocean Technology,1999,18(3):38-42. |
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| Authors: | Yu Liansheng |
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| Abstract: | In this paper,the principle and primary results of measure ultrasonic sound velocity and attenuation coefficient by ultrasonic syntonic method are introduced.The relationship between the Q value of ultrasonic resonant cavity and attenuation coefficient is educed for the first time,which supplies theoretic support to get the coefficient accurately by interferometry,and a practical method is introduced. |
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| Keywords: | ultrasonic syntonic method sound velocity attenuation coefficient |
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