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INSPECTION & MEASUREMENT :: The Video Contour Projector with touchscreen display combines the external arrangement of a horizontal contour projector with the large field of view/long depth of focus optics of a digital measuring system. Te ability to digitally pan and zoom the image, and the availability of sophisticated measuring tools such as QVI's FeatureFinder, give these systems the fexibility to be used as walk-up inspection stations, as comparators with electronic overlay charts, or as fully automatic 2D measuring systems. Tus, the Video Contour Projector retains all the robustness and the familiar profle of a traditional optical comparator, while bringing advanced digital measurement technology and automation to the shop foor. The New Toolmaker's Microscope of the comparator feld of view and make automatic edge measurements. Optical Gaging Products introduced its VidiProbe camera and 2D measuring software in 1982. Fast forward to today, and Vidiprobe is reborn using the latest in digital video technology. Integrating a high megapixel digital camera into the comparator optics enables the comparator to measure entire features in one snapshot, rather than measuring individual points with each stage movement. Digital zoom and image pan enable the user to easily zoom in for a closer look at the image instantly, without changing the comparator lens. Te speed and precision aforded by an integrated video camera adds yet another level of capability to the familiar optical comparator. Digital imaging techniques open up many possibilities for easy and accurate measurement for small and even micro parts on the shop foor. Te latest generation of digital measuring machines (DMMs) are especially useful for measuring smaller parts. Tese machines have all the capabilities of vision measurement systems, but are designed to handle small parts that ft in their viewing area— typically about 3-inches diagonal. Te better quality DMMs can process and measure the entire feld of view instantly using internal video cameras and measuring software. Multiple features or even entire parts can be measured in one snapshot. A range of feature types are handled, including features larger than a single feld of view. Feature constructions allow dimensions and locations to be calculated from measured features—something more difcult to do with The New Comparators Another new wrinkle in shop-friendly inspection and measurement is Certifed Comparator Products' Video Contour Projector. Tis hybrid system combines the external arrangement of a horizontal contour projector with the large feld of view/long depth of focus optics of a digital measuring system. Much like a conventional optical comparator, the Video Contour Projector forms a precisely magnifed image of the part being inspected, but instead of projecting the image on an analog screen, the image is presented to a high resolution metrology camera, which digitizes the image and presents it on a touchscreen display. Te vital technology in these systems is the telecentric optical assembly, which forms an accurate image of parts up to 6 inches thick, eliminating the need to focus each edge precisely for measurement. 34 PRODUCTION MACHINING :: FEBRUARY 2013 :: Digital Measuring Machines with full-featured software allow complex measurements to precisely match CAD designs. :: Autocorrelate recognizes parts in the system's library and can orient and measure them automatically.