Taking factors affecting the accuracy of static leveling as the starting point

this paper analyz⁃ es the degree of influence of temperature difference and barometric difference in pipeline

pipe diame⁃ ter

etc

and proposes corresponding solutions. Also

this paper analyzes bubbles

liquid corrosion

dew condensation on float surface

contact friction

sensor measurement error and other factors

and proposes corresponding optimization methods. The error propagation rule of the static leveling system is explained and the pipeline test process is described

which can check whether the static leveling system works nor⁃ mally. Through comparison and analysis of artificial leveling observation data and automatic static level⁃ ing data of a typical project

it is concluded that after taking various methods

the measurement accuracy can meet the requirements of specifications.