Eye On Inspection

• Nat Stern, CEO and VP, eltromat electronics: There are essentially two types of print inspection systems, 100 percent and samples. Sampled uses an area camera strobe arrangement on a traverse and is capable of very fine inspection. These systems are mainly for preventive control where defects are detected before they become serious. The shortcoming is little chance of finding sporadic defects. One hundred percent systems generally use line cameras and have less sensitivity than sampled systems. They are very good at catching sporadic defects and are usually the choice for inspection rewinds.