通过串行口将常规旋光仪与计算机通信,构建了基于LabVIEW的旋光度测量虚拟仪器系统,实现了旋光度测量的自动采集、实时绘制和拟合旋光度与浓度标准曲线、待测样浓度的求算及数据存储等,提高了测量的准确度和减少了人为误差.将该系统用于果糖的浓度、纯度分析检测和检验,其浓度、纯度的相对误差均不超过2%,结果令人满意;该系统经过少许修改可用于单种旋光物质和多糖物质的快速批量分析测定。 Through the serial port of the conventional polarimeter and computer communication, the establishment of the optical measurement instrument based on LabVIEW virtual instrument system to achieve automatic measurement of optical rotation, real-time mapping and fitting optical rotation and concentration of the standard curve, the concentration of the sample to be measured Calculation and data storage, improve the accuracy of measurement and reduce human error.This system is used for fructose concentration, purity analysis and testing and testing, the relative error of concentration and purity are not more than 2%, the result is that Satisfactory; this system with a few modifications can be used for rapid batch analysis of a single species of optically active substances and polysaccharides.