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ThePrincipleandApplication

ofRingLaserGyro1ppt課件1Background2ppt課件Gyroscope:Asensorwhichhastheabilitytoperceivetherunningspeedandmaintainthedirectionofthetype.3ppt課件Inertialcomponents

Inertiameasurement

InertialnavigationInertialstabilizationInertialguidance

Inertialdeviceisthecoreoftheinertialtechnology

4ppt課件Traditionalinertialgyrohasahighrequirementontheprocessstructures,complexstructure,andtheprecisionisrestricted.Ringlasergyrorotorrotatingparts,notangularmomentum,ringframe,alsodonotneeddirectionanglesensormovingparts,suchassimplestructure,longworkinglife,convenientmaintenance,highreliability.TraditionalgyroRinglasergyro5ppt課件FiberopticgyroRinglasergyro①RLG's

zerobiasandscalefactorofthesystemparametersarestabilitycomparedwithFOG,sothecalibrationdifficultyrelativelyeasy.②TheopticalpathofRLGmustbekeptinasolidcomponent,sothedegreeofFOGonthesurroundingenvironmentsensitiverthanRLG.③RLGhassomeinherentdrawbacks,suchasmirrors,gas,andundertheconditionoflowspeeditiseasytoclosure.④Theprecision

ofRLGishigh,buttheprice

alsohigh.6ppt課件1Background2Basicprinciple7ppt課件Rotationfreecondition,twobeamsoflighttransmissiontime,whichis,Undertheconditionofrotating,8ppt課件ThetimeoftwodirectionsTransmissiontime9ppt課件PartialfrequencycomponentsChenglongcontrolcomponentSignalreadoutsystemRinglaserLogiccircuitThepowercomponentTheinstallationstructureElectromagneticshieldingcover,etcConstituteoftheRLS10ppt課件Theactualmodel----lasergyrorelativeinterferometer11ppt課件1Background2Basicprinciple3Mainapplication12ppt課件①M(fèi)ostoftheaircraftandcivilaviationabroadF-22,F-35,SU-30aircraft,B747andA320civilianplanes②Conventionalweaponssuchastanks,artillery"Latin"howitzerSwedishBKAN1AandFH-77-bhowitzersPrecisionmeasurementreconnaissancevehicles③AllkindsoftacticalandstrategicmissilesSmallintercontinentalballisticmissiles"dwarf"TheBlockIIItomahawkcruisemissile.④Observethetinyseismiceffect

andthesolidgroundtidaleffect13ppt課件1Background2Basicprinciple3Mainapplication4Researchstatus14ppt課件TheresearchstatusofabroadForthefirsttimein1963,theSperry,thecompanysuccessfullydevelopedtheringlasergyro.In1975,Honeywellcompanydevelopedthemechanicalditheringfrequencylasergyro,adoptingthetechnologyoflasergyrostrapdowninertialnavigationsystemtrulyenteredthepracticalstage.Early21stcentury,Littoncompanydevelopedthemechanicalditheringoffourfrequencydifferentiallasergyro,theprecisioncanreach0.001°/h.NowHoneywell'slatestGG1389precisionoflasergyrohasamountedto0.00015°/h.15ppt課件Mainindicators16ppt課件Thedomesticresearchstatus1960s,Theresearchstarted.Inthelate70s,tsinghuauniversity,nationaluniversityofdefensetechnology,thefirstopticalinstrumentfactoryinsuzhou,Chinaacademyofsciences,303.90yearslater,therelevantinstitutesuccessivelycarriedoutresearchworkofgyrotemperaturecharacteristicsandmodelingerrorcompensation.Atprese

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