PC-DMIS provides two different paths for a circle. It automatically chooses the appropriate path based on the diameter and the size of the usable portion of the laser stripe. For auto circles, PC-DMIS always scans perpendicular to the direction of the stripe.
Path 1: Smaller Diameter
Circles with a diameter smaller than the usable portion of the stripe
(A) - Scan motion
Path 2: Larger Diameter
Circles with a diameter larger than the usable portion of the stripe
The method for measuring circles with a larger diameter has been improved to measure the four passes at 1:30, 4:30, 7:30, and 10:30 rather than 12:00, 3:00, 6:00, and 9:00 as depicted in the image.