professionaltransitMore please consultMeasurement,putonatripod,theodolitewithpendantoropticalplummetaimtheinstrumentcentersitemeasurementontheground,withalevelinstrumentisflat,aimtomeasurewithatelescope,pingdudishwithwaterandverticalscalehorizontalAngleandverticalAngle. Accordingtothedividedintoprecisiontheodoliteandordinarytheodoliteprecision;Accordingtothereadingdevicecanbedividedintoopticaltheodoliteandcursortheodolite;Accordingtotheshaftingstructure

TheodoliteisdesignedaccordingtotheprincipleofmeasuringAnglemeasuringhorizontalAngleandverticalAnglemeasuringinstrument,dividedintotwokindsofopticaltheodoliteandelectronictheodolite,electronictheodoliteiscurrentlyused. Theodoliteisthemechanicalpartofthetelescope,t hetelescopecanpointtodifferentdirections.Theodolitehastwomutuallyperpendicularaxistoset-upofthetelescopeazimuthAngleandheightlevel.

Skillsshootingoftencannotleavethetripodhelp,suchasnightshooting,macrophotography,etc.Isthemainfunctionofthetripodcanstablecamera,inordertoachievesomephotographiceffect. Useatripodincommonisthelongexposure,theuserifyouwanttotakepicturesofsurgeofnightsceneortrack,needtoincreasetheexposuretime,thistime,thedigitalcameracan'tshake,isneedsthehelpofatripod.

onceyourmeasurements,theinsideofthetapespringautomaticallycontraction,rodundertheactionofspringforce,alsofollowcontract,sothetapewillberolledup. Characteristicsofthe A,tapemeasuredistortionistoolargewillnotfail.Whydidn'tthefailure;Thewoundinthetapeisverylong,it'scompletelyrelaxedtocompletelytightenrangeisverylarge,tapeofthewholetrip,

andthepracticeloftingitout.Someoneisusingitaccordingtothesimilartriangleprincipletomeasureheightmaybehorizontalinterval,butnotprecise,thelargerthedifferencebetweensimilartriangle,thegreatertheerror. Finalbriefsaidagain:transitpriorityislookingorpeninesigtheright-angleprinciple,theuseofotherviewpointsarenotveryaccurate.Myreplytoexpectsomehelptoyou.

Instarsisfarawayfromus,eyescouldn'tdistinguishbetweentherealaloneisnotthesameasthedistancebetweenthem, soinouropiniontheseplanetsareasthesame.Let'simagineadanglingofsphericalshellcoverthewholeoftheearth,theideaoftheballiscalledthecelestialsphere(Celestialsphere), butthesestarsarefixedinthesphericalshellinside,everytimewecanonlyseehalfofthesphere.Asaresultoftheearth'srotation,

(1)transmitter:rf,basebandsignalmodulationtoandpoweramplifier. (2)receiver:willreceiverfsignaldemodulation,enlargereductionintoabasebandsignal. Phase-lockedloop(3):providesthehighstabilityofthestandardforthetransmitterandreceiverrfsignal. (4)thebasebandprocessingandmodem:thebasebandsignalfilteringandamplificationplastic,modem,etc.

Intheprocessofactualmeasurement,thestaffneedasmuchaspossibletoreducetheimpactoftemperatureformeasuringinstrument, soitisveryimportanttochoosetheappropriatemeasurementenvironment.Ifyouwanttoachievegoodenvironmentaltemperaturecontrol,theusercaninstallthermostaticdeviceindoors. Secondrelatedfactorsofthemeasuredobjectalsohasagreatinfluencetotheprecisionofmeasurement,suchassize,material,etc.,ifinthecaseofatemperaturedifferenceisnotbig,theworkpiecesizeislarge,

ndustryoperationsneedstobedoneelectronicmeasuringinstruments,electronicmeasuringinstrumentisshoulderingtheotherindustrytoupgrade,thehistoricalmissionofindependentinnovation. Second,secondaryyuan,alsoknownasimaginginstrument,videomeasuringinstrument,two-dimensionalimagemeasuringinstrument,automaticimagemeasuringinstrument.