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COORDINATE MEASURING MACHINE STREAMLINES DIAMETER MEASUREMENTS.


In an effort to streamline calibration calibration /cal·i·bra·tion/ (kal?i-bra´shun) determination of the accuracy of an instrument, usually by measurement of its variation from a standard, to ascertain necessary correction factors.  of diameter standards, NIST (National Institute of Standards & Technology, Washington, DC, www.nist.gov) The standards-defining agency of the U.S. government, formerly the National Bureau of Standards. It is one of three agencies that fall under the Technology Administration (www.technology.  researchers have carried out a careful investigation of the uncertainty of diameter measurements using their Coordinate Measuring Machine. They find that they can achieve uncertainties that are essentially identical to what is attained using more traditional methods requiring dedicated, special-purpose equipment and laborious la·bo·ri·ous  
adj.
1. Marked by or requiring long, hard work: spent many laborious hours on the project.

2. Hard-working; industrious.
 set-up. In March they performed their first calibrations of ring and plug gages Gages

Devices for determining the relative size or shape of objects. The function of gages is to determine whether parts are within or outside of the specified tolerances, which are expressed in a linear unit of measurement.
 for outside customers.
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No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2001, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Publication:Journal of Research of the National Institute of Standards and Technology
Article Type:Brief Article
Geographic Code:1USA
Date:Mar 1, 2001
Words:69
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