視覺定位技術在慣性元件測量中的應用研究.pdf

1、天津大學碩士學位論文視覺定位技術在慣性元件測量中的應用研究姓名：黎春宇申請學位級別：碩士專業(yè)：儀器科學與技術指導教師：郭敬濱201112ABSTRACTGyroscopeisaveryimportantsensitivecomponents，whichisusedinnavigationandcontroIsysteminshipsaircraftandmissilesTheinertialpartsinthegyroscopeusua

2、llycontainprecisestructures，SuchasdeepholesandSmallbearingsAccuratepositioningshouldbedonebeforemeasuringtheseprecisestructuresOnCMM(CoordinateMeasuringMachine)Inthisarticle，weusevisionPositioningtechniquestodevelopavisi

3、onpositioningsystemfortheinertialparts，whichisbuiltontheDHFORMseriesCMMinourlabThesystemcanproviderapidandaccuratenoncontactpositioning，whichensuresthatthemeasuringgoessuccessfullyandimprovesthemeasuringefficiencyThemain

4、researchworksofthisarticlearelistedasfollows1)PositioningmissionsaremadefirstlybYanalyzingtheStructureandgeometricalelementsoftwoofthemajorinertialpartsandthecoordinatemeasuringmachineBasingonthemissions，thevisionpositio

5、ningsystemaredesignedandbuiltFortheinnerframepart，specialfixtureisdesignedBacklightingisusedtoprojectitscontourLongfocallengthandunfocusedlightingisused，whichreducesthespecialoccupationofthesystemTelecentriclensisused，wh

6、ichcanavoidperspectiveandimprovetheprecisionFortheouterframebearingpart，fixtureandlensareintegratedintoOlletokeeptheholeinthefieldofcameraviewAndbackcirclelightsourceisdesignfortherubybearingintheparttoachievepictureswit

7、hhighcontrast2)Inthefieldsofimagedenoising，imagesegmentation，imageedgedetection，edgecontourextractionandedgesubpixellocalization，theusualimageprocessingalgorithmsareanalyzedandcomparedinexperimentsBasingontheresultsofexp

8、eriments，properalgorithmSareselectedtobeusedinthevisionpositioningsystem3)PositioningprogramsandmethodsaredesignedforthespecificpartsForthevisionpositioningsystemoftheinnerframepart，methodsaredesignedtodemarcatetheangleb