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Metrology Equipment Catalog - Rapp Industrial Sales

Metrology Equipment Catalog - Rapp Industrial Sales

Metrology Equipment Catalog - Rapp Industrial Sales

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O P T I C A L M E A S U R E M E N TO P T I C A L M E A S U R E M E N TFast Round Part InspectionThe whole TESA-Scan product line belongs to therange of dedicated non-contact opto-electronicmeasuring centers that provide Users with a completesolution for inspecting small round partsquickly. Including a variety of systems such as thoseusually integrated into profile projectors or microscopes,they offer the round part manufacturer amore capable alternative to traditional inspectionmethods. TESA’s product range can measure shapesand sizes of round parts from 0,3 up to 80 mm indiameter, which can be as long as 500 mm.Operating PrincipleAll TESA measuring centers incorporates high-resolution CCD linear sensors. Each sensor issubdivided into thousands of light sensitive pixels. As the part image is being projected,these sensors, which act as light sensitive rulers, can detect the slightest changes at subpixellevel.The workpiece is illuminated with parallel white light and its image is projected onto thelinear CCD sensors, which are inclined to 7,5°. They provide the information obtained fromthe image, thus allowing accurate analysis of the geometry of the workpiece features.MACHINED PARTSENSOR 1LIGHTSOURCEWORKPIECEIMAGECONDENSERLENSPROJECTOR LENSSENSOR 2Complex part features such as straightness or circularity can easily be inspected by combiningrotation with axial movement. This permits any surface of the workpiece to bescanned dynamically in order to determine the part axis for true 3D alignment and referencepurposes.Dynamic MeasurementRotation is a standard function of the inspection process, allowing a rotary scanning ofthe workpiece for highly accurate measurement of both the part geometry and shape,also with high speed.2D MeasurementThe part profile is obtained by scanning along thepart axis. A two-axis image projection is produced astheworkpiece diameter and length are being measuredsimultaneously.A unique feature of these systems from TESA lies inthe orientation of the linear sensors to 75° (10° forTESA-Scan 80) with respect to the workpiece axis,guaranteeing accurate measurement of all individualgeometric elements such as angles, radii, diametersor any other part features with parallel or inclinedP-2surfaces.<strong>Rapp</strong> <strong>Industrial</strong> <strong>Sales</strong>888 789-7277

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