Optical sensors based on various measuring principles and integrated into CMMs or special Gear Measuring Instruments (GMI) today are able to capture several 10,000 measuring points per gear flank in reasonable time. Other than in conventional gear metrology, these points cover the whole flank instead of only one profile and one lead line, offering a substantially improved data base for gear inspection. This meets an increasing industrial need of holistic information on gear flanks for a better assessment of both, the gear manufacturing process and the functional properties of the measured gear.
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