Visibility Limit
The visibility limit is the minimum distance between two points that the human eye or a camera system can distinguish. It depends on contrast, viewing angle, and lighting.
Physical-Chemical Mechanism of Action
The visibility limit describes the minimum resolution of an optical system, i.e., the smallest distance between two points that can be distinguished. This value varies depending on the quality of the eye or camera, as well as ambient conditions such as contrast and lighting.
Metallurgical Relevance & Risks in Welding
In the shop, the visibility limit is crucial for inspecting weld quality. Deviations that are too small cannot be made visible, which can lead to misunderstandings. This can result in inaccurate assessments and potential defects in the product.
Workshop Practice & Instructions
To effectively use the visibility limit, ensure good lighting and high contrast between the weld and the surrounding area. Use high-resolution cameras for detailed inspections. When visually checking weld quality, make sure that the deviations are larger than the visibility limit of the inspection system used.