A Reflectometry Approach for Rippling Defect Measurement on High Glossy Surface

Locally deformed defects, rippling, on home appliances cause appearance quality issues, and they look enlarged on high glossy surface. The defects need to be detected in the production line, where the product is moving on a conveyor transfer system. Inspection is executed by an expert but it is very subjective and not quantitative so that even quality assurance team cannot manage the defects levels. As a solution, a visual measurement methodology based on one shot reflection Moire is developed to obtain numerical data about surface defects. The system is introduced in this article, and experiment results are shown.