| 摘要 |
To determine the height of a surveying apparatus (1) above a point (15) on the ground, the surveying apparatus (1) has a distance measuring device and is provided with a front attachment (11) which is mounted on the telescope (8) and effects beam deflection and simultaneous beam divergence of an emitted infrared or laser beam towards the point (15) on the ground. The light beam is deflected around the surveying apparatus (1) and a stand (2) carrying the apparatus. Exact sighting of the point (15) on the ground is no longer necessary. The height is calculated as a function of the distance between the point on the ground and the rotary position of the telescope (8), which distance is in any case relatively accurately measurable in the apparatus.
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