Lub kaum sab xis ntsuas qhov tseeb yog qhov tseem ceeb tshaj plaws qhia ntawm lub theodolite, feem ntau qhia hauv vib nas this (″), xws li 2″, 5″, 10″, thiab lwm yam. Cov nqi me me qhia tau tias muaj qhov tseeb dua. Precision theodolites tuaj yeem ua tiav 1 "los yog qhov tseeb dua, tsim nyog rau kev tswj xyuas kev soj ntsuam thiab qib siab -kev tshawb fawb engineering.
Qhov tsawg kawg nkaus kev nyeem ntawv thiab kev daws teeb meem qhia tias qhov hloov angular tsawg tshaj plaws uas ntsuas tau pom, feem ntau sib raug rau qhov tseeb ntawm qhov tseeb. Electronic theodolites feem ntau ua tiav qhov kev daws teeb meem ntawm 1 "los yog siab dua, yog li txhim kho cov ntsiab lus thiab kev ntseeg siab ntawm kev ntsuas.
Cov ntsuas kev ua tau zoo ntawm lub tshuab hluav taws xob muaj xws li kev nthuav dav, thaj chaw saib, thiab qhov chaw nyob deb tsawg kawg nkaus. Magnification yog feem ntau ntawm 20 × thiab 30 ×, txiav txim siab qhov tseeb ntawm lub hom phiaj pom; thaj tsam ntawm kev pom cuam tshuam rau qhov kev soj ntsuam ntau, thaum qhov tsawg kawg nkaus stadia nrug txiav txim siab qhov ntsuas qhov siv tau nyob ze - qhov ntsuas ntau.
Lwm qhov ntsuas muaj xws li kev them nyiaj rau qhov tseeb, qib qhov tseeb, thiab kev hloov pauv ib puag ncig, xws li kev ntsuas plua plav thiab dej tsis zoo (IP ntsuas) thiab kev ua haujlwm kub. Tag nrho cov no cuam tshuam rau kev ruaj ntseg thiab kev ntseeg siab ntawm theodolite hauv thaj chaw nyuaj.
