The specific rotation and concentration of the sucrose are measured with laser, It can collect the data and out put the curve real-timely by computer, it has the advantages of easy clarity and high accuracy.

• 摘要采用激光测量了蔗糖溶液的旋光率及其浓度，利用计算机实时采集数据并输出图形，使实验具有直观、准确度高、操作简便等特点。