摘要
为了验证由Apfel和Sehgal提出的非线性声参量混合定则，本文利用改进的热力学方法，测量了诸如猪全血、羊全血及牛全血等二元系生物媒质的非线性声参量B／A值．结果表明：可视为二元系的血液媒质，其B／A值在与其含水体积百分比的关系上，测量值与Apfel和Sehgal的混合定则理论值基本相一致，但测量的B／A值并不等于混合定则理论值．
Using the improved thermodynamic method, the acoustic non-linearity parameter B/A of binary biological mixtures, such as pig blood, sheep blood and bovine blood, is measured in order to test the mixture rules proposed by Apfel and Sehgal. The results show that, treated as a binary mixture, the blood obeys the trend that the B/A value varies with the volume of wa ter. This is in agreement with the rules proposed by Apfel and Sehgal. However, the measured B/A value is not exactly equal to that of the mixture rules.
出处
《商洛学院学报》
1998年第4期1-4,共4页
Journal of Shangluo University
基金
国家自然科学基金
