摘要
利用光镊技术对一组质量百分比含量不同的乙醇水溶液在30oC下的黏度进行了测量,其结果与理论估算的一致,二者之间的偏差为10%左右;此外,得到的黏度随乙醇含量的变化规律与20oC、40oC时的相同。验证了基于光镊非接触操控方法在易挥发液体及其混合溶液黏度测量的实用价值。
The viscosity of a group of the ethanol - water solutions of different ethanol concentration at 30℃ were measured, and the result consisted with theoretical value with a relative error about 10%. More is that the relationship between the viscosity and the concentration of solutions got here is similar to those of 20℃ and 40℃. All these demonstrated that is a valuable method of measuring viscosity of the volatile liquid or its solutions due to the non - contact feature of the optical manipulation.
出处
《应用激光》
CSCD
北大核心
2006年第4期257-260,共4页
Applied Laser
基金
国家自然基金(10474094)
中科院知识创新工程(KJCX2)资助
关键词
光镊
非接触法
布朗运动
黏滞系数
Optical tweezers
Non -contact way
Brownian motion
Viscosity
