Apparatus and method to increase the measuring accuracy of digital 3d - geometry measuring systems

摘要

An optical measuring system for measuring a surface of an object (2), with the following features:a device (4) for defining a radiation plane (6), in order to obtain a gauge strip (8) on the surface of the object (2) to produce;a matrix sensor (10) with a in a quantization of the direction (32) through quantization limited resolution, in order to real image locations (30, 33) of the gauge strip (8) in the quantization of the direction (32) and a direction perpendicular thereto (34) on the sensor (10) by producing a receptacle of the on the surface generated to obtain a gauge strip (8), which is in a projecting direction (36) is imaged on the sensor;an evaluation device (20), which is formed an effective image location in the quantization of the direction (32) based on the associated real image location (30) and at least one further real image location (33), of the associated real image location (30) in the for the quantization the direction of the vertical direction (34) is adjacent; anda resolution improvement in a direction (22), which is formed an angle (38) between the projecting direction..