摘要
提出用掠入射法测量溶液浓度的方法，该法不受光源强弱和波长变化的影响，测量环境宽松。利用溶液浓度与其掠入射临界光线折射角的关系，采用标准溶液进行测量和拟合标定，给出数学解析关系式。对已知浓度为5％～80％的蔗糖溶液进行实验测量，结果最大偏差为0．002％，具有工程应用的前景。
To eliminate the measurement errors arisen from light source intensity and wavelength fluctuation, a method of measuring solution concentration by glancing incidence was proposed. The method is based on the relationship between solution concentration and the critical light refraction angle of the transparent medium. Different concentrations of a set of sucrose solution were measured experimentally, which vary from 5 % to 80%. The maximum deviation is 0. 002%.
出处
《物理测试》
CAS
2006年第1期16-19,共4页
Physics Examination and Testing
关键词
掠入射法
临界光线折射角
溶液浓度
method of glancing incidence
refraction angle
solution concentration
