| 摘要 |
A measuring apparatus (10), for measuring the distance to a surface (14) having fluctuating reflectivity, the measuring apparatus (10) comprising, a measuring light source and sensor unit (16) positioned at an angle to the perpendicular of the surface (16) to allow the light to be reflected to a diffuse target surface in a known position; and a processor unit, wherein the processor unit is adapted to collect and analyse data from the a measuring light source and sensor unit (16) and classify whether the reading of the measuring light source and sensor unit (16) is a direct reading or a reflected reading. |
