What kinds of instruments are used for setting up lines on the site?
The diagram can be used for the total station or the polar coordinates or the intersection method.
Total station, the total station electronic rangefinder (ElectronicTotalStation), is a set of optical, mechanical and electrical as one of the high-tech measuring instruments, is a set of horizontal angle and vertical angle, distance (oblique distance, horizontal distance), height measurement functions of the instrument of Surveying and mapping system.
Compared with the optical theodolite optical electronic theodolite dial for photoelectric scanning disk, artificial optical micrometer readings replaced by automatic recording and displaying the measurement readings, simple operation, and can avoid the error of reading. Because it can complete all the measurements on the station at one time, it is called the total station instrument. Widely used in the field of large-scale construction and underground tunnel construction, such as precision engineering surveying or deformation monitoring field.