基于实时双光路校正的分光测色仪优化设计  

Optimization Design of Spectrophotometer Based on Real Time Calibration of Dual Optical Path

作　　者：袁琨[1,2] 张淑琴[1] 吴逸萍 金尚忠[1] 

机构地区：[1]中国计量学院光学与电子科技学院,杭州310018 [2]杭州彩谱科技有限公司,杭州310034

出　　处：《光子学报》2016年第7期155-159,共5页Acta Photonica Sinica

基　　金：国家重大科学仪器设备开发专项(No.2014YQ491015);质检公益性行业科研专项项目(No.201410110)资助~~

摘　　要：设计了一种基于实时双光路校准的分光测色仪结构,在现有双光路设计中加入校准光源对主光路和辅助光路进行实时双光路校准.构建算法对由温度变化引起的传感器响应效率变化进行修正,并设计实验在不同温度下对仪器采样稳定性进行评价.实验表明,采用了实时双光路校正仪器的工作温度从10℃变化至30℃后,测量数据稳定性标准偏差小于等于0.03,最大偏差小于等于0.04,相对于现有技术方案有显著改善.A improved double-beam structure in spectrophotometer was proposed which has an extra calibration light source in the design of the double-beam to calibrate both the main beam and the auxiliary beam in real time. The related optimisation spectral data sampling algorithm was presented to modify the change of sensor response efficiency caused by temperature change, the effect of the proposed structure with a series of customised experiments at at different ambient temperatures was evaluated. Experiment results show that when operated in an environment with a temperature change from 10℃ to 30℃, double-beam correction instrument is able to produce measurements repeatability, the standard deviation with an average is less than or equal to 0.03, and the maximum is less than or equal to 0.04, which is a significant improvement to existing products.

关 键 词：颜色测量 反射光谱 双光路 分光测色仪 光学结构 算法优化 实时校正 

分 类 号：O438.2[机械工程—光学工程]