One particular North American manufacturer inspected its blades by hand and human eye. The highly trained inspectors measured hundreds of features and checked for surface defects at depths in the order of thousandths of an inch. Manual inspection was not only costly in terms of time and labor, but subjective as well. Results were variable and even differed between inspectors. Finally, because manual inspection was so time consuming, there was no systematic inspection of every blade; only a sampling of blades were inspected. Clearly, the manufacturer required an approach that would allow systematic inspections of the blades, save time, and yield consistent and repeatable results.Download white paper