改进二次归一化消除光源起伏影响  

Improved Quadratic Normalized for Eliminating Effect of Light Source Fluctuation

作　　者：高红波[1] 史谢飞[1] 王彭 沈晓曼 杨济华 曾丽梅[1] 赵卫国 Gao Hongbo;Shi Xiefei;Wang Peng;Shen Xiaoman;Yang Jihua;Zeng Limei;Zhao Weiguo(Institute of Optics,National Institute of Measurement and Testing Technology,Chengdu 610021,Sichuan,China;Institute of Flow,National Institute of Measurement and Testing Technology,Chengdu 610021,Sichuan,China;College of Metrology Measurement and Instrument,China Jiliang University,Hangzhou 310000,Zhejiang,China)

机构地区：[1]中国测试技术研究院光学研究所,四川成都610021 [2]中国测试技术研究院流量研究所,四川成都610021 [3]中国计量大学计量测试与仪器学院,浙江杭州310000

出　　处：《激光与光电子学进展》2024年第23期209-213,共5页Laser & Optoelectronics Progress

基　　金：四川省基本科研业务费(2022JDKY001);四川省重大科技专项(2020ZDZX0014)。

摘　　要：为消除光学物体色度测量系统中光源起伏对测量结果的影响,提出一种改进的基于二次归一化系数的物体色度新算法并设计测量装置。以不改变原测量光路为原则,在原测量系统单色仪后端加装二次归一化测量装置,将光源发出的光按比例分割为测量和监视两路,实现测量光束向监视光束的二次归一,消除光源起伏对测量结果的影响。通过调节光源驱动电源的输出电流模拟光源起伏,对新旧方法进行对比实验。实验结果表明,新算法的测量相对误差不超过0.51%,有效提高了测量系统的稳定度和精度,可消除光源起伏对测量结果的影响。To eliminate the influence of light source fluctuation in an optical object chromaticity measurement system,this study proposes a new algorithm for object chroma based on quadratic normalized coefficient and develope a measuring device.Based on the principle of no change in the original optical path,the device is installed at the back of a monochromator.The light from light source is divided into two parts:measurement beam and monitoring beam.Consequently,the measuring beam is normalized to the monitoring beam.Results obtains by changing the output current of the driving power to simulate the fluctuation of the light source using the proposed and conventional methods are compared.Experimental results show that the relative error of the proposed method is no more than 0.51%.Thus,the proposed method can effectively improve the stability and accuracy of the measurement system and eliminate the influence of the light source fluctuation.

关 键 词：归一化 物体色度 光谱反射因数 光谱透射比 光源起伏 CIE色度 

分 类 号：O439[机械工程—光学工程]