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Automotive Design & Production, June, 2003
How do you accurately measure holes that are exceedingly small, such as those in fuel injectors? Whatever method you're currently using, it's probably not as simple as that which can be performed by a new vision/ultrasonic probe system announced by Mitutoyo America (www.mitutoyo.com). The Ultrasonic Micro and Accurate Probe (UMAP) uses a vision system to position the probe with an accuracy of 1.4 microns within a measuring range of 12 x 8 x 8 in.
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The probe, depending on the size system selected (UMAP 130 or UMAP 180), is either 30 [micro]m or 80 [micro]m in diameter. The stylus length for the former is 2 mm; it's 12 mm for the latter. The carbide/glass probe tip is ultrasonically actuated; measurement data are obtained by calculating the waveform changes that result from contact between the probe and the walls of the hole.
COPYRIGHT 2003 Gardner Publications, Inc.
COPYRIGHT 2008 Gale, Cengage Learning
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