Quick Guide to Precision Measuring Instruments

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PG47Quick Guide to MeasurementDetecting/measuring edges in the XY planeVision MeasurementVision measuring machines mainly provide the following processing capabilities.■ Edge detection■ Auto focusingFocusing and Z measurement■ Pattern recognitionAlignment, positioning, and checking a featureVision Measuring MachinesAn image is comprised of a regular array of pixels. This is just like a picture on ne plotting paper with each square solid-lled differently.CCD camera lensVideo signalAmplierHigh-speed A/D converterFrame grabberDisplay screenPCCCD camera lensVideo signalAmplierHigh-speed A/D converterFrame grabberDisplay screenPC480 pixels640 pixelsImage Storage