What are the instruments and equipment for measuring the verticality and the angle of yin and Yang in the walls of houses?
It is called "inner and outer right angle measuring ruler", "yin yang angle ruler", not "total station instrument".
Total station theodolite and optical difference dial readings and display system, electronic theodolite horizontal disc and vertical dial and reading device is used for angle measurement (encoding disc) or two of the same grating disk and sensor readings. According to the angle measurement accuracy can be divided into 0.1 "," 0.2 "," 0.5 "," 1 "," 2 "," 5 "and so on several grades.
Total station, the total station electronic rangefinder (Electronic Total Station), 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.
