Divide by structure
According to the different structures, the level can be divided into micro-tilt level, automatic level, laser level and digital level. Each level has its own unique characteristics and scope of application.
According to the working principle
According to the different working principles, the level can be divided into electronic level and optical level. The two levels have their own advantages and disadvantages, and users can choose according to actual needs.
grading
China's national standards divide the grades into four grades: DS05, DS 1, DS3 and DS20. Among them, DS05 and DS 1 are precision levels, which are often used in national first-class and second-class precision leveling and earthquake monitoring. DS3 leveling and DS 10 leveling are ordinary leveling, which are suitable for national third-and fourth-class leveling and general engineering leveling.
Select the DS3 level.
In highway engineering survey, we usually choose to use DS3 level. DS3 leveling is a kind of common leveling, which is suitable for national third-and fourth-class leveling and general engineering leveling. It has the advantages of high precision and convenient use.
abstract
Level is a kind of measuring instrument, which can be divided into many types according to the different structure and working principle. China's national standards divide the grades into four grades: DS05, DS 1, DS3 and DS20. In highway engineering survey, we usually choose to use DS3 level.