RTK RECEIVERThe priceWelcome to callMeasuringinstrumentisinordertoachievethetargetcertainattributevaluesandmeasureneededthreestandards,measuringinstrumentisgenerallyhasthescale,capacityetc. Scholarsandvoyagerisveryclear,ifwecanaccuratelymeasuretheobject'spositiononthesea,sothesailorscancertainlyknowtheirlatitude.Todothis,needisaprecisionmeasuringinstruments.

Thestructureofthetheodolite(commonparts): 1.Thetelescopebrakescrew2.3.Thetelescopemicroscrew4.Level5.Brakinglevelmicroscrew6.Feetspiral7.Opticalsight8.Thefocusoftheobjective9.Theeyepiecelens10.Dialreadingmicroscopefocusing11.Verticaldiskindicatortubelevelmicrospiral12.Opticalabout13.Thebasecirclelevel14.Instrumentbase15.Verticaldial16.Verticalscaleaccordingtospiegel17.Departmentofsightingtubelevel18.Thehorizontalcirclepositiontransformationthehandwheel

Mainsectionistriangularprism.Prismhastworefractor,theycalledvertexAngle,AngleofdipAngleontheplaneforthebottom. Accordingtothelawofrefractionoflightthroughaprism,thetwotowardthebottombending,emergentlightandincidentlightAngleqiscalledtheslantAngle. ItssizeisdecidedbytherefractiveindexnandincidentAngleofprismmediumI,whenIfixed,differentwavelengthsoflighthavedifferentbendingAngle,bendingAngleisbiginthevisiblelightpurplelight,smallredlight.

Theriseandfallofcentercolumnforfine-tuninganduseonly,asfaraspossibleavoidtohigh,toprevent"top-heavy".Beforefilmingshouldalsocheckeachpartoflockingdevices,makeitsfastening,avoidshaking.

ForeigncompaniestoChinafactory,theproductionofdomesticimportsofsurveyingandmappinginstruments. Nowadays,thecompetitionofsurveyingandmappinginstrumentsfocusontotalstationandGPS.Sincethelate1980s,theworld'smajorsurveyingandmappinginstrumentsmanufactureraftermerger,competition, reorganization,formeda3+1pattern,namelythe"bigthree",bigthreetrimble,Switzerlandleica,JapanbillitonPuKang;Alargefoifissurveyingandmapping.

Levelistobuildalevelofvisionmeasurementinstrumentforthegroundelevationdifferencebetweentwopoints.Basedontheprincipleoflevelmeasurementprincipleofmeasuringthegroundelevationdifferencebetweenpoints. Maincomponentshaveatelescope,tubelevel(orcompensator),theverticalaxis,base,feetspiral.Accordingtothestructureisdividedintotiltinglevel,automaticanpinglevel,laserlevelanddigitallevels(alsoknownaselectroniclevel).Accordingtotheaccuracyofdividedintoprecisionlevelandtheordinarylevel.

Measuringinstrumentsmusthavethescaleandvolume,sothatwecanmeasuretheattributevalue,isadvantageousforthethirdpartyinspectionstandards. Chartisusedtodomeasurement,ancientobservatoryisgenerallyinlargevolume,theshipismadeofsmallsize.Isusuallyneedtothreepeople,onepersonmakeamistake,theresultisno. Andlooked,andastronomerscommonlyusedmeasuringinstrument.Thisisbetterthansimplechart,oneoperation.