Laser beam levelling device and process for operating a laser beam levelling device and associated contrivance

摘要

The present invention relates to a laser beam levelling device which has a rotating frame which is rotatable round a vertical axis and an inclining arrangement which is pivotal round a horizontal axis. Means connected to a controller are also provided to enable the rotated and inclined position to be monitored. One inclining arrangement can be orientated and inclined by the controller such that the laser plane formed by a rotating laser beam is inclined in a specific direction by a specific angle. This inclination is an auxiliary inclination by means of which the laser plane is simultaneously inclined in a longitudinal and transverse gradient differing from this auxiliary direction of inclination in each case. The auxiliary direction and the auxiliary inclination are calculated automatically by the controller on the basis of the desired longitudinal and transverse gradient of the laser plane and are converted into corresponding control commands. The orientation of the inclining arrangement can be monitored by a contrivance owing to a second laser beam which displays a vertical and is emitted according to the orientation of the inclining arrangement.