DIMENSIONAL INSPECTION METHOD
Optical measurement for profiles, edges, hole locations and smaller planar features.
QUICK ANSWER
2.5D vision measurement is useful for accessible planar features that can be detected optically, including profiles, edges and hole locations. It is often efficient for small or delicate parts, but it is not a substitute for 3D measurement when the drawing controls hidden or multi-face relationships.
HOW IT SUPPORTS A PROJECT
Vision measurement uses magnified optical imaging and software to identify edges and compare planar features. It is especially useful for smaller parts, delicate features and dimensions that can be located clearly from a suitable viewing direction.
METHOD LIMITATIONS
Results depend on edge contrast, focus, lighting, part orientation and a clear line of sight. Deep, hidden or low-contrast geometry may require another inspection method such as CMM or dedicated gauges. Send the controlled drawing, critical characteristics, sampling requirement and expected report format with your RFQ.
BUYER QUESTIONS
Direct answers for engineers and sourcing teams defining an inspection scope.
The method suits visible planar profiles, edge distances, hole locations, diameters and other features that can be presented clearly to the optical system. Suitability depends on contrast, focus, lighting and part orientation.
It can be useful for small, delicate or accessible planar features where non-contact edge detection provides a repeatable view. Contact tools or CMM may still be required for depth, hidden geometry or relationships between multiple faces.
Poor edge contrast, reflective or translucent surfaces, burrs, unclear focus, unstable positioning and obstructed lines of sight can affect results. The inspection method should therefore be confirmed against the actual part and drawing.
RELATED INSPECTION METHODS
No single instrument is right for every drawing characteristic.
