用于微流场分析的显微纹影系统设计

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1、密级无分类号ＴＨ７４１＿方知＾拿＇ＡＮＯＧＸＩＴＥＣＨＮＯＬＩＣＡＬＵＮＩＶＥＲＳＩＴＹ硕士学位论文题目：用于微流场分析的显微纹影系统设计作者：汤红指导教师：侯宏录教授申请学位学科：光学工程２０１８年５月２０日密级无分类号TH741XI’ANTECHNOLOGICALUNIVERSITY硕士学位论文题目:用于微流场分析的显微纹影系统设计作者：汤红指导教师：侯宏录教授申请学位学科：光学工程2018年05月20日λ/10，通过搭建实验平台对流场温度值进行测量，并与热电偶测量值比较，

2、两组测量值基本一致，验证了系统的可行性。关键词：微流场；显微纹影；显微物镜设计；结构设计；温度测量imagingsystemis10timesandtheresolutionis1μm.Theimagingqualityisclosetothediffractionlimit,andtheobservationofthemicroflowfieldcanberealized.3.Overallanalysisofeachmoduleofthesystemstructureiscarriedout,theinstallationstruct

3、ureandsupportingstructureofeachpartofopticalsystemaredesigned,includingtheinstallationpartsoflightsource,cameraandknifeedge.Severalinstallationmethodsoflensareanalyzed.Thelensinmicroschlierensystemisfixedbypressingcirclemethod,andthelenstubeofcollimatinglens,microscopeobj

4、ectiveandphotographiclensisdesigned.Aknifeedgecomponentofthemicroschlierensystemisdesigned,andastraightlinesteppermotorisusedtodrivethemovementoftheknifeedge.Accordingtotheinstallationsizeofthemotor,thecorrespondingconnectingflangeisdesigned.Byanalyzingthesensitivityofthe

5、system,thestepvolumeoftheknifeedgeissetto10μm.4.ThefiniteelementanalysisofcollimatinglensisanalyzedbyANSYS.TheresultshowsthattheRMSofthemirrordeformationislessthanλ/10.Thedesignsatisfiedtherequirements.Theexperimentalplatformwasusedtomeasuretheflowfieldtemperatureandcompa

6、redwiththethermocouplemeasurementvalue.Similarityshowsthefeasibilityofthesystem，whichverifiedthefeasibilityofthesystem.Keywords:microfield;microschlieren;microscopeobjectivesdesign;structuraldesign;temperaturemeasurement目录1绪论...............................................

7、........................................................................................11.1课题研究背景与意义....................................................................................................11.2传统纹影技术概述...........................................................

8、.............................................11.2.1纹影技术原理.......................................