Visual Inspection (VI) is one of the most widely used Non-Destructive Testing (NDT) methods for the detection of discontinuities before they develop into major problems. Areas where visual inspection can be utilized are; poor welding, corrosion and pitting, general condition monitoring, surface degradation & defects and protective coating monitoring.
Visual Inspection means the inspection of equipment, structures or vessels using a combination of the following human senses; vision, hearing and touch. Visual Inspection often works in conjunction with a number of the following Non-Destructive Testing (NDT) methods; UT, EC, MT, PT or RT.
Visual Inspection can also be carried out with the aid of devices such as a magnifying glass, flash lights, boroscopes, digital video borescopes and camera systems.