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Optical Metrology Spotlight
This article is based on an original publication by Vision Engineering.
Cost may have little bearing on results and accuracy levels of even the most extravagant metrology system, and your selection should ultimately depend on what you are trying to measure. A good optical measuring microscope investment will allow accurate measurement of features at the small, sub ten micron level.
Inspection not possible with CMM
As components continue to shrink, coordinate measuring machines (CMMs) become increasingly inefficient. Cumbersome probes struggle to measure features quickly and do not accommodate inspection of surface features. They also fail to provide non-contact measurement, essential for medical devices and other critical components.
Allowing for inspection capabilities not possible with CMMs, optical measuring microscopes utilize pure optical images coupled with the most accurate image recognition system known to man - the human brain - to deliver a precise measurement for complex features.