A Brief Talk on the Adjustment of the Centering Device on the Theodolit、Total Station and Static GPS

To further improve the precision of the Theodolit、Total Station、Static GPS and lower the measurement errors caused by the Centering Device,through analsis of both the optical structure and the accuracy of the Optical Centering Device,some relevant solutions are put forward according to the main sources of the Optical Centering Device fault.These solutions are a summary of the author's years'experience of adjusting and repairing the Theodolit、Total Station and Static GPS;they can shorten the repair time and improve the check efficiency,which are practically valuable for the adjustment of the Theodolit、Total Station and Static GPS.