On the metrology of the speed of sound in liquids

被引：3
作者：
Babii, V. I. [1 ]
机构：
[1] Russian Acad Sci, Marine Hydrophys Inst, Sevastopol 299011, Russia
来源：
ACOUSTICAL PHYSICS | 2017年 / 63卷 / 03期
关键词：
marine environment; speed of sound; speed of light in vacuum; measurement; error; diffraction; standard; decentralization; VELOCITY; NOISES; FLOW;
D O I：
10.1134/S1063771017030034
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
Decentralization of the standards base in measuring the speed of sound in liquids by expressing the speed of sound in fractions of the speed of light in vacuum is considered. A method to take into account the diffraction effects by measuring the speed of sound in the case of a constant acoustic wavelength and binding the absolute speed of sound values to the calculated thermodynamic values obtained by the nonacoustical method when the adiabatic compressibility is equal to the isothermal one is proposed. Errors of the reproducibility of the unit of the speed of sound in water using the proposed method are estimated.
引用
收藏
页码：275 / 287
页数：13
相关论文
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