ABSTRACT
These sensors (Figure 14 . l ) project a finely focused laser spot of light to the part surface. As the l ight strikes the surface, a lens in the sensor images the point of intersection onto a solid-state array camera. Any deviations from the initial refer enced point can be measured based on the number of sensor elements deviated from the referenced point. Accuracy is a function of standoff distance and range. Figure 14 .2 depicts an integrated system performing both 2-D and 3-D measure ments using sensor data based on laser triangulation principles.
