| 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 |
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| 引用本文： | 苏Fang 谢斌. 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[J]. 高压物理学报, 1994, 8(2): 81-86 |
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| 作者姓名： | 苏Fang 谢斌 |
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| 作者单位： | 中国科学技术大学基础物理中心，中国科学技术大学结构分析开放实验室，中国科学技术大学无线电电子学系 |
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| 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ρ随流体静压力的变化。最后，给出了石油醚的绝热压缩系数β与流体静压力的关系。
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| 关 键 词： | 流体静压力 超声声速 衰减系数 密度 绝热压缩系数 |
| 收稿时间： | 1993-07-05; |
ULTRASONIC VELOCITY AND ATTENUATION COEFFICIENT, DENSITY AND ADIABATIC COMPRESSIBILITY OF PETROLEUM ETHER UNDER HIGH HYDROSTATIC PRESSURE |
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| Su Fang,Xie Bin,Wu Kunyu. ULTRASONIC VELOCITY AND ATTENUATION COEFFICIENT, DENSITY AND ADIABATIC COMPRESSIBILITY OF PETROLEUM ETHER UNDER HIGH HYDROSTATIC PRESSURE[J]. Chinese Journal of High Pressure Physics, 1994, 8(2): 81-86 |
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| Authors: | Su Fang Xie Bin Wu Kunyu |
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| Affiliation: | 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 |
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| 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+6.771×10-3p-2.282×10-5p2+5.449×10-8p3-6.077×10-11p4+ 2.436 × 10-14p5 (0≤p≤700 MPa). In addition, we measured mass and compressed volume, getting the variation of density of petroleum ether with pressure: ρ=0.6246+1.007×10-3p-1.823×10-6p2+2.548×10-9p3-1.393×10-12p4 (0≤p≤700 MPa). Finally, according to the equation c=(1/ρβ)1/2, the relation between hydrostatic pressure and adiabatic compressibility coefficient of petroleum ether were obtained. |
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| Keywords: | hydrostatic pressure ultrasonic velocity attenuation coefficient density adiabaticcompressibility coefficient. |
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