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ID:36502486
大小:2.25 MB
页数:96页
时间:2019-05-11
《基于Mie散射的微粒浓度和粒度测试的理论与实验研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、图书分类号..Y9014780密级一博士学位论文基壬丝曼趑射的丝整邃廑塑粒廑指导教师凰邀昌熬攫申请学位级别.盟±掌僮专业名称到选让量撞苤壁健器论文提交日期论文答辩日期垫Q§年§月!!日2005——年!!月!!一日论文评阅人猛泣遍:i谢荜鼬二迸盟正』啦趟幽.为袁帝.稼善抱答辩委员会主席查e!兰!蠡.一于10微米,在一定浓度范围测试的技术手段、方法是可行的。第六章给出了微粒粒度测试的技术方案及散射系数与粒度的汁算曲线与拟采用的标定方案;微粒粒度的实验室测试数据以及首次提出以斜率标定粒度的方法,将在某大型国有企业的现
2、场实验及测试。论文的创新性如下:1理论上分析计算了微粒散射光强与粒度的关系,确定了实验技术方案,设计了测试系统,实验结果证实了理论计算的正确性,并首次提出以前向散射光强与微粒浓度线性关系的斜率来标定粒度。2设计了在实际烟道中测试的技术方案,采用角隅棱镜增大光程、降低了接收器的瞄准困难。3采用光纤传感器,根据理论计算及模拟,确定了后向散射对微粒浓度测试方案,实验结果验证了理论计算的正确性和实践应用的可行性。4全面研究了Mie散射理论,并对散射系数、效率因子进行了计算模拟。关键词:微粒,浓度,粒度,Mie散射,光纤
3、传感器TheoreticalandExperimentalStudyonParticulateDensityandGranularityMeasurementBasedoilMieScatteringTheoryAbstractParticulatemeasurementisoneofmulti.disciplineandmulti-fieldtechnologies.Itisknownthatmostsolidsubstancesexistinthefclrnlofparticulateincludingth
4、enaturesubstancessuchassoil,silt,atmospheredust.flourofgrainandsucrose,aswellasartificialsubstancessuchasmwdercoal,catalyst,cement,chemicalfertilizer,pigmentanddrug.Therefore,thetechnologyrelatedtomeasuringparticulateandltsapplicationhasawideapplicationinman
5、yindustrialfieldssuchasenvironmentalprotection,petrochemicals,medicine,COal,ocean,waterconservancy,metallurgy,buildingmaterials,geologyandfoodstuff,etc.Althoue,htherearevariousprinciplestotestparticulatedensityandgranularityatpresent,theopticalmethodhastheme
6、aningoffurtherresearchforitspeculiarfeatures.Themaincontentsareasfollows:Inchapter2theauthoranalyzesthetypicalcharacteristicsoftheinteractionbetweenparticulateandoptical,reviewssomerelatedliteraturesaboutparticulatemeasurement,andcomparesthecommonmeasuringte
7、chniquesandmethodswiththetypicalones.ThelaserparticulatemeasuringmethodbasedonMieScatteringTheoryisintroduced.too.In廿1echapter3somerelatedphysicalconcepts,formulasandmeaningsinMieScatteringTheoryaresummarizedandillustrated,whichwilllayasolidfoundationforfurt
8、hercalculation.Togetthegranularityofparticulatebytestingtheintensityofscatteringlight,itisnecessarytoknowthetheoryofparticulatescattering,i.e.comparingthescatteringfigure.Accordingtotwofunctions
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