Patent ID: 7385214
Filing Date: 2008-06-10
Classification: G01B

Abstract:
1. A surface measuring arrangement comprising: a sensor head movable over a surface in a scanning direction, a device for measuring an angle of the sensor head relative to the scanning direction comprising an auto-collimation telescope wherein a mirror, that is fixedly connected to the sensor head, or another highly accurate angle measurement device, is positioned in the beam oath of the auto-collimation telescope and wherein the mirror and auto-collimation telescope are used to output an angle of the sensor head, a plurality of distance sensors, arranged on the sensor head at a fixed spacing from one another in the scanning direction, for detecting the surface and outputting respective distance sensor signals for measuring the distance from the respective distance sensors to the surface a movement device for moving the sensor head in successive scanning, an evaluation device for receiving the distance sensor signals and the sensor head angle signal, and for detecting a topology of the surface based on the distance sensor signals and the sensor head angle signal.