Test content of photoelectric collimation

(1) Laser plumbometer: an instrument for determining the plumb line, used in mine shafts to measure the direction of the projected plumb line, etc.;

　　 (2) Laser guide: an instrument for directional control. When a photoelectric receiver is installed on the working machine that needs to be oriented, the working machine can be restored to its original position through the automatic control system;

　　 (3) Laser level, etc.: an instrument that uses a laser collimation line to set the level or level;

　　 (4) Laser theodolite: an instrument for angular coordinate measurement & orientation collimation measurement.