資源描述：
《Testing of large optical surfaces with subaperture stitching》由會員上傳分享，免費在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、TestingoflargeopticalsurfaceswithsubaperturestitchingShanyongChen,*ShengyiLi,YifanDai,andZiwenZhengCollegeofMechatronicEngineeringandAutomation,NationalUniversityofDefenseTechnology,DeyaRoad,Changsha,Hunan,China410073*Correspondingauthor:shanyongchen@tom.comReceived6F
2、ebruary2007;accepted5March2007;posted12March2007(Doc.ID79817);published18May2007Basedonourpreviouslyproposedsubaperturestitchingandlocalization(SASL)algorithm,wepresentstrategiesandaprototypefortestingoflargeopticalsurfaceswithsubaperturestitching.First,severalstrateg
3、iesareintroducedtodealwithnewproblemswhenapplyingtheSASLalgorithmtolargesurfaces.Theuncertaintyofthelateralscaleoftheinterferometeriscompensatedinthesamemannerasthatoftheradiiofbest-?tspheresinthealgorithm.Thenthecoarse–?nestitchingstrategyisproposedtostitchtensofsuba
4、perturesef?ciently.Second,aprototypefortestingoflargesurfaceswithsubaperturestitchingisdevelopedwithaweldedstructuralbase.Themodelofkinematicsisbuilttodeterminetheinitialcon?g-urationofeachsubaperture,accordingtotherecordsofnullingmotion.Theuncertaintyoflinearmotionis
5、requiredtobenomorethan1mm,takingadvantageofthelargerangeofconvergenceoftheSASLalgorithm.Finallywepresentanexperimenttoverifythevalidityofthemethodandtheprototype.Asphericalsurfaceistestedandsuccessfullystitchedwith37subapertures.?2007OpticalSocietyofAmericaOCIScodes:1
6、20.3180,120.4630,220.4840.1.IntroductionSAToflargesurfaces,intermsofhighstabilityandThesubaperturetesting(SAT)methodhasbeendis-highprecisionwithinalargeworkspace.cussedformorethan20years.MosteffortswereQEDhasbeenmakingeffortstotesttheTerrestrialmadetotestlargeplanoopt
7、ics.However,in2003,PlanetFinderCoronagraph(TPF-C)secondaryandQEDTechnologies[1]claimedtosucceedindevelop-theJamesWebbSpaceTelescope(JWST)secondaryinganautomatedsubaperturestitchinginterferom-mirror,attemptingtoobtaininformationabouttheeterworkstationforsphericalandmil
8、dlyasphericsurface?gure,waviness,andevenroughness.Itwassurfaceswithaperturesoflessthan200mm.believedthatonlyengineeringdetai
