摘要
基于声速测试仪,利用时差法测量了超声波在不同浓度甘油溶液中传播纵波的速度,结合波动学理论间接求出了不同浓度下甘油溶液的体变模量。对甘油溶液的体变模量与其浓度的关系进行了定性和定量的研究与分析,给出了甘油溶液的体变模量与其浓度的关系图及线性拟合方程。研究结果表明,随着甘油溶液浓度的不断增加,甘油溶液的体变模量也随之增加,而且甘油溶液的体变模量与其浓度呈线性关系。这一研究结论在材料力学、化学工业以及进一步研究液体力学特性等方面有着重要的参考和应用价值。
Based on the speed of sound tester,the velocity of longitudinal waves which propagates in different concentrations of glycerol solution were measured by using transit time ultrasonic.With wave theory,the bulk modulus in different concentrations of glycerol solution were obtained indirectly.Meanwhile,the relationship between the bulk modulus and concentration of Glycerol solution was discussed and analyzed qualitatively and quantitatively.Finally,the bulk modulus of glycerin solution and its concentration were given by the experimental diagram and the fitting equation.The results show that when the concentration of glycerol increases,the bulk modulus increases.And there is a linear relationship between glycerol solution volumetric modulus and its concentration.This finding has important reference and application for further study of the mechanics of materials,chemical industry and mechanical properties of liquids and so on.
出处
《实验室研究与探索》
CAS
北大核心
2011年第12期50-51,74,共3页
Research and Exploration In Laboratory
关键词
超声波
体变模量
浓度
ultrasonic
bulk modulus
concentration
