Procedure for Comparing a Reception Beam Impinging on a Laser Receiver with a Rotating Laser Beam

Procedure for comparing a reception beam (24) hitting a laser receiver (12;

• 91) with a rotating laser beam (22) which is emitted by a rotating laser (11) in a direction of rotation (23) around an axis of rotation (21), whereby the laser receiver (12) includes an evaluation unit (48) and at least one detection field (25;
• 92, 93) with a first measuring range (53;
• 94) and a second measuring range (54;
• 95), distinguished by the procedural steps:
• Upon impingement of the reception beam (24) on at least one detection field (25;
• 92, 93) of the laser receiver (12;
• 91), an evaluation unit (48) determines a first reception signal (61;
• 71;
• 81) which represents the time trend of the impinging reception signal (24) in the first measuring range (53;
• 94), and a second reception signal (62;
• 72;
• 82) represents the time trend of the impinging reception beam (24) in the second measuring range (54;
• 95),
• The evaluation unit (48) determines a direction of movement (63;
• 73) of the reception beam (24) relative to the laser receiver (12;
• 91) from the first and second reception signal (61, 62;
• 71, 72;
• 81, 82) and
• The direction of movement (63;
• 73) of the reception beam (24) is compared by the evaluation unit (48) with the direction of rotation (23) of the rotating laser beam (22).