基于偏振光法油雾浓度检测的研究  

Research on oil mist concentration detection based on polarized light method

作　　者：杨伟红[1,2] 宋锦春[2] 刘克铭[1] 徐广明[1] 

机构地区：[1]辽宁工程技术大学机械学院,辽宁阜新123000 [2]东北大学机械工程与自动化学院,沈阳110004

出　　处：《光学技术》2011年第3期322-326,共5页Optical Technique

基　　金：国家自然科学基金资助项目(50875040)

摘　　要：针对油雾具有旋光性,提出了基于偏振光法的油雾浓度检测方法。介绍了油雾浓度检测系统的基本原理,设计了检测系统的结构,建立了检测系统的数学模型,对检测系统进行了实验研究,并对两种实验方案的结果进行了对比分析。检测系统采用双光路检测法,用法拉第旋光器进行补偿,并用称重分析法对系统进行标定。实验结果表明该方法的两种实验方案在低油雾浓度时都具有良好的检测效果,特别是实验方案A的灵敏度和线性度优于实验方案B。According to the optical activity of oil mist,the method of oil mist concentration detection based on polarized light method is presented.Basic principle of oil mist concentration detection system is introduced.The structure of detection system is designed.Mathematical model of detection system is established.Experimental research on the detection system is carried out,and comparative analysis of the experimental results of the two programs is carried out.Double-light-path detection method is used to detection system.Detection system is compensated by faraday rotator and calibrated by weighing method.The experimental results show that the two experimental programs of this method all have good detection effects when oil mist concentration is low,especially the sensitivity and linearity of experimental program A are better than those of experimental program B.

关 键 词：光学测量 油雾浓度 偏振光 旋光性 法拉第效应 

分 类 号：O436[机械工程—光学工程]