乙醇与水二元混合液体受激布里渊散射及压缩率研究

本文给出了二元理想混合液体受激布里渊散射频移表示式的两种表示式，测量了乙醇／水在不同混合体积比下的折射率。引用文献〔１〕〔２〕的实测数据，从化学键与分子漳相互作用的角度对文献〔１〕乙醇／水测布里渊频移偏离理论值给予解释，指出实际压缩率偏离理论值是这种偏离的关键因素。对乙醇／水混合液体压缩率公式进行修正，理论与实际符合较好。受激布里渊散射对混合液体压缩是敏感的，由此可对混合液体的热力学性质作研究，进

The Study of stimulated Brillouin scattering and compressibility on binary solution of ethanol/water

This paper gave two forms of equations of stimulated Brillouin scattering frequency shift(SBSFS).The author measured the refractive indexes of ethanol/water(C 2H 5OH/H 2O)under different fixed volume proportion.Quoated the real datas of reference 1 2 ,explanations were given in the view of chemical bonds and intermolecular interactions on the deviation of SBSFS of the real value and theory's.The author pointed out the difference of real compressibility from theory's is the critical factor about the deviation.The compressibility equation of C 2H 5OH/H 2Owas amended,and the theory is accorded with the real.Because SBSFS is sensitive to the compressibility of binary solution,we can study the thermodynamical attribution of binary solution and conjucture intermolelar interactions and microcosmical composition.