Automated inspection of circular parts

Automated vision inspection systems are the most versatile non-contact inspection systems. They are fast, compact, and remarkably accurate, thereby making 100% on-line inspection possible in modern manufacturing systems.

Roundness in one of the basic geometric elements in engineering design and manufacturing. As a result its inspection is an important part of the inspection of many industrial parts.

This paper discusses least-squares and minimax mathematical models and algorithms to determine the out-of-roundness error in automated roundness inspection. These errors are measured with respect to an ideal circle of specified radius.