| 摘要 |
The invention relates to a coordinate measuring device comprising a carrier (6) that can be rotated automatically about two axes and that can be directed toward a measuring aid (5). The following are arranged on the carrier (6) so as to be able to move together: · an optical distance measuring device (4) for measuring the distance to the measuring aid (5); · an infrared light source (23) for emitting an infrared target beam (24), which is visible as an infrared target point (25) when reflected on the measuring aid (5); · a fine target detection unit (2) for determining a fine position of the infrared target point (25) on a first position detection sensor (21), wherein the fine target detection unit (2) and the distance measuring device (4) have a common exit lens system (63); · a second light source (33), the light of which is visible as a second target point (35) when reflected on the measuring aid (5); · a rough target detection unit (3) for determining a rough position (32) of the second target point (35) on a second position detection sensor (31), wherein the rough target detection unit (3) is sensitive only to light in the infrared range. A control device (7) is provided to direct the carrier (6) toward the measuring aid (5) according to the fine position (22) and the rough position (32). |
