Quality Magazine - March 2009 - (Page 23) EDITORIAL REPRINTS BRIGHTEN YOUR PROMOTIONAL CAMPAIGNS Use articles from our superior publications to complement your sales, promotion, or educational programs. Reprints are a great way to strengthen your sales message! Take advantage of this cost-effective, targeted promotional opportunity and the power of reprints to reach your audience. There are many ways in which companies are using reprints, for example, trade events, sales kits, and direct mail pieces. August 2008 www.qualitymag.com PRODUCTS OFFERED ■ Reprints ■ Posters ■ E-prints/PDFs ■ Plaques Q UA L I T Y 101 CUSTOMIZABLE Reprints can be tailored to suit your company’s needs, including: ■ Company logos and contact information ■ Advertisements ■ Highlighting of information in tables charts, and text in articles Some vision dimensional metrology systems have streaming vision technology, which replaces conventional digital cameras and associated lighting with stroboscopic illumination, enabling a progressive scanning camera to capture images while the workpiece is in motion. Source: Mitutoyo America Corp. implemented. For example, there are CNC vision measuring systems capable of measuring radii, holes and other features with a total tolerance bandwidth of 0.5 micrometer. Interestingly, the pixel count of a vision metrology system’s digital camera is not a limiting factor because almost all the charged-coupled device (CCD) pixels are applied against the magnified image being scrutinized. This is in contrast to machine vision systems, which typically image fields of interest measured in square inches. July 2008 www.qualitymag.com Measure with Vision Vision dimensional metrology can offer unique productivity enhancing opportunities. BY AL L EN J. C IUS ILLUMINATION Workpiece illumination is crucial to the function of vision metrology tools. These tools rely on contrast to automatically find edges and light color to resolve color-based features. The three basic types of illumination include stage, through the lens (co-axial) and programmable ring. Stage lighting is simplest and performs much like lighting used in optical comparators. Coaxial lighting is directed to the workpiece through the optical train and is mainly used to illuminate a workpiece surface. Ring lighting is the most flexible. Some ring designs employ halogen/ fiber optic illumination; others use LEDs. For example, rings can make use of red, green and blue LEDs, mixing the colors to obtain white light. A choice of colors makes it easier to defi ne edges and textures and to distinguish colored features. Color and intensity of light can be programmed by quadrant. V ORDER OPTIONS ■ Minimum order is 500 copies ■ Printed on 70 lb. gloss enamel. 80 lb. & 100 lb. gloss enamel available at extra cost. ■ Reprint prices vary based on order size and article length ision dimensional metrology should not be confused with machine vision. While both are based on image analysis, vision dimensional metrology systems generally are offline or near-line systems, collecting dimensional data points in 2-D or 3-D, analogous to those collected by coordinate measuring machines (CMMs). By contrast, machine vision systems generally are located in-line, snapping images of moving parts for real-time examination of features of interest. TECHNOLOGY OVERVIEW Today, parts requiring dimensional measurement and inspection are becoming extremely small. Some, on the nanoscale, are built up from the molecular level. These parts are too small for measurement via conventional CMMs because contact probes typically cause enough displacement to prevent accurate results. As applied, vision dimensional measurement systems image the features to be examined with a digital camera that is driven into position using computer numerical control (CNC) technology, operating much like a CMM. Applied in this way, the focal point of the objective lens is analogous to the center of the CMM’s stylus. A magnification level is determined, the workpiece is illuminated to optimize contrast and an appropriate lens train is selected. The feature of interest is programmed into the system using appropriate software tools such as edge detection or pattern detection. In some systems, auto-focus technologies that correlate depth of field to known Z-axis values can generate 3-D measurements. Because the workpiece view can be magnified to any power, there is virtually no lower limit to the size of features that can be measured, provided that the optics are properly Reprinted from Quality, Copyright October 2008 STREAMING VISION Streaming vision is a new technology that in certain applications can greatly impact the throughput of vision metrology. Streaming replaces conventional digital cameras and associated lighting with stroboscopic June 2008 www.qualitymag.com QUICK TURNAROUND Completed reprints ship to your requested destination within three to four weeks from the receipt of order and artwork. If you would like a FREE, no obligation quote, please contact: SUNNY COVERLY: Inside Sales Manager • Tradeshows & Reprints Phone: 610.436.4220 x 8522 • Fax: 248.283.6587 Email: coverlys@bnpmedia.com Add Value for True Position Measurement p. 30 Accreditation vs. Certification p. 44 Quality Expo Detroit Product Showcase p. 50 http://www.qualitymag.com http://www.qualitymag.com http://www.qualitymag.com
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