Combining a Touch Probe and a Laser Sensor for 3D Part Inspection on CMM

Abstract Path planning is a main concern for multi-sensor automated inspection. In this paper, a 3D scanner that combines a laser-sensor and a touch probe is used and mounted on the motorized head of a CMM. Due to this particularity, the path planning is defined in terms of scanner configurations, in which inspection features that could be measured by either the laser-sensor or the touch probe are clustered. For each scanner configuration, the ability of laser-sensor in terms of quality and accessibility is assessed and then the probe ability is assessed before setting the next configuration. The effectiveness of the proposed approach is tested on a part defined by its CAD model.

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