Forced centering device for geodetic instruments - is applied to the odolites, optical and electronic range finders target panels boards and reflectors

摘要

The forced centring device is provided for geodetic instruments, especially theodolites, optical and electronic range finders also associated target panels, boards and reflectors. The geodetic instrument for levelling around a point of the stay axis is tilted. The point is led in a part unmovable during the levelling operation relative to a support plate. The connecting line between this point and the centre of the part of the centring device connected to the support plate is vertical to the support surface in order to make the height of the axis of tilt independent of instrument and levelling operation.