1. Hom rangefinder yuam kev
Lub infrared rangefinder muaj qhov zoo ntawm qib siab ntawm automation, nrawm nrawm thiab siab precision. Txawm li cas los xij, yog tias cov cuab yeej siv tsis raug lossis tswj tsis tau zoo, cov cuab yeej ua haujlwm yuav hloov ntxov, ua rau poob ntawm qhov tseeb. Kev laus ntawm cov khoom siv hluav taws xob kuj yog ib qho laj thawj tseem ceeb rau kev poob qis ntawm qhov ntsuas qhov tseeb thiab kev hloov pauv ntawm cov cuab yeej siv hluav taws xob ntxiv. Txhawm rau txhawm rau txhawm rau ntsuas qhov ua tau zoo ntawm txhua qhov ntsuas, siv lub ntsuas ntsuas kom tsim nyog, thiab ntsuas cov ntaub ntawv zoo, nws yog ib qho tsim nyog yuav tsum ua cov kev ntsuam xyuas dav dav ntawm lub ntsuas ntsuas tsis tu ncua.
There are many types of ranging errors, including aiming errors, amplitude and phase errors, misalignment errors, period errors, errors due to signal-to-noise ratio, etc. There are occasional errors and system errors. Although the aiming error is accidental, there is also a certain regularity. A good surveyor should master the performance of the instrument he owns so that he can use the instrument to observe within the smallest error range of the instrument.
2. Rangefinder aiming yuam kev
Qhov yuam kev ntawm lub hom phiaj yog hais txog qhov tsis sib xws ntawm qhov ntsuas qhov deb thaum lub rangefinder emits lub nqaj ntawm txoj haujlwm sib txawv, uas yog, qhov yuam kev ntawm qhov tsis sib xws ntawm lub teeb-emitting raj lossis lub modulator, feem ntau tshwm sim los ntawm gallium arsenide (GaAs) , uas yog theem sib txawv ntawm cov nqaj emitted los ntawm LED. ua rau sib npaug. Lub beam emitted los ntawm gallium arsenide, qhov zoo tshaj plaws, muaj tib theem ntawm ib tug nkhaus nto equidistant los ntawm lub teeb-emitting raj nyob rau hauv lub beam range. Ntxiv dua thiab, qhov kev ncua deb ntsuas nyob qhov twg ntawm lub nqaj yog tib yam, tab sis nws' s tsis. Cov theem ntawm txhua lub ntsiab lus ntawm qhov nkhaus ntawm qhov sib txawv ntawm qhov sib txawv ntawm lub teeb-emitting raj yog qhov sib txawv, thiab cov theem nrog tib theem yog qhov tsis sib xws ntawm qhov nkhaus, uas ua rau cov txiaj ntsig sib txawv thaum siv cov kab teeb ntawm qhov sib txawv los ntsuas qhov deb. Qhov sib txawv ntawm ob qhov lus dag nyob rau theem tsis sib xws tshwm sim los ntawm kev ua yuam kev.
3. Rangefinder calibration
Nws tuaj yeem pom los ntawm iso-theem nkhaus thiab iso-kev siv nkhaus uas lub aiming yuam kev faib yog ntau yam, tab sis nyob rau hauv thiaj li yuav zoo dua txhim kho qhov kev soj ntsuam raug, thaum aiming ntawm lub prism, aiming ntawm ib feem nrog qhov tsawg tshaj plaws yuam kev - lub thaj chaw zoo. Txhawm rau txo qhov yuam kev ntawm lub hom phiaj, ntawm ib sab, nws yog ib qho tsim nyog los txhim kho cov txheej txheem tsim khoom ntawm lub modulator los yog lub teeb-emitting raj los txhim kho cov uniformity ntawm nws spatial theem. Txawm li cas los xij, txoj kev no muaj kev cuam tshuam zoo rau kev ntsuas qhov ntsuas, thiab tsis tuaj yeem tshem tawm qhov cuam tshuam ntawm theem tsis sib xws. Xav txog tias qhov deflection ntawm lub aiming nyem yog tshwm sim los ntawm lub aiming yuam kev ntawm lub tsom iav raj thiab cov tsis-parallel ntawm lub transmitting thiab txais optical axes thiab collimation axis ntawm lub tsom iav raj, lub qub yog tsis sib xws thiab lub tom kawg yog systematic. Yog li ntawd, thaum siv cov cuab yeej, peb-axis parallelism yuav tsum tau kuaj xyuas thiab kho ntau zaus kom pom qhov chaw soj ntsuam zoo tshaj plaws los txhim kho qhov kev soj ntsuam kom raug.
