Close Fitting Inner Diameter (ID) Inspection

Close fitting inner diameter inspections demand precise control of both optics and illumination to produce accurate, detailed results. When the scope is positioned closely within the ID, adjustments to focus and lighting are essential to optimize visibility. Selecting the correct direction of view is equally important, with angles between 70° and 110° often providing enhanced coverage along the internal surface.

Surface finish significantly impacts inspection performance. Highly polished interiors present a unique challenge due to their reflective properties, which cause light to deflect away from the imaging system. In these cases, careful lighting control and view angle selection are required to maximize surface detail. Surfaces with flatter finishes, such as weld zones or machined areas, allow for more effective evaluation under a wider range of viewing conditions.

For full interior assessments, a 0° direction of view is often paired with a wide field lens to capture the entire ID at once. This configuration can reduce the need for incremental scanning, speeding up the inspection process while still providing comprehensive coverage.

Zibra Corp’s expertise in custom borescope configurations ensures that each system is optimized for the specific geometry, surface conditions, and access requirements of the application. By tailoring optics, lighting, and direction of view, we deliver clear, consistent imaging in even the most demanding close fitting ID inspections.