石油醚在流体静高压下的超声声速、衰减、密度和绝热压缩系数

苏昉; 谢斌; 吴昆裕

doi:10.11858/gywlxb.1994.02.001

石油醚在流体静高压下的超声声速、衰减、密度和绝热压缩系数

doi: 10.11858/gywlxb.1994.02.001

苏昉^1,2,,
谢斌¹,
吴昆裕³

1.
中国科学技术大学基础物理中心，安徽合肥 230026；
2.
中国科学技术大学结构分析开放实验室，安徽合肥 230026；
3.
中国科学技术大学无线电电子学系，安徽合肥 230026

详细信息

通讯作者:
苏昉

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出版历程
- 收稿日期: 1993-07-05
- 修回日期: 1993-08-30
- 发布日期: 1994-06-05

Ultrasonic Velocity and Attenuation Coefficient, Density and Adiabatic Compressibility of Petroleum Ether under High Hydrostatic Pressure

SU Fang^{1,2
,},
XIE Bin¹,
WU Kun-Yu³

1.
Center of Fundamental Physics, University of Science and Technology of China, Hefei 230026, China;
2.
Structure research Laboratory, University of Science and Technology of China, Hefei 230026, China;
3.
Department of Radio and Electronics, University of Science and Technology of China, Hefei 230026, China

More Information

Corresponding author: SU Fang

摘要

摘要: 专门设计了用脉冲-回波-重合法在不同静水压下测量液体声速的装置，并对石油醚在0.1~650 MPa流体静压力范围内测量了其超声声速和衰减系数。还通过测量体积压缩量和质量得到石油醚密度随流体静压力的变化。最后，给出了石油醚的绝热压缩系数与流体静压力的关系。
- 流体静压力 /
- 超声声速 /
- 衰减系数 /
- 密度 /
- 绝热压缩系数
Abstract: An apparatus for measuring ultrasonic velocity of liquid under different hydrostatic pressure was specially designed with the method of Pulse-Echo-overlap. Under the hydrostatic pressure ranged from 0.1 to 650 MPa, we measured ultrasonic velocity and attenuation coefficient of petroleum ether which is an important liquid-medium for transmitting pressure. An empirical formula of experimental data was obtained. The pressure dependence of ultrasonic velocity c is as follows: c=1. 063+6.77110-3p-2.28210-5p2+5.44910-8p3-6.07710-11p4+ 2.436 10-14p5 (0p700 MPa). In addition, we measured mass and compressed volume, getting the variation of density of petroleum ether with pressure: =0.6246+1.00710-3p-1.82310-6p2+2.54810-9p3-1.39310-12p4 (0p700 MPa). Finally, according to the equation c=(1/)1/2, the relation between hydrostatic pressure and adiabatic compressibility coefficient of petroleum ether were obtained.
- hydrostatic pressure /
- ultrasonic velocity /
- attenuation coefficient /
- density /
- adiabatic compressibility coefficient