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Displaying 36526 - 36550 of 74129

A Simple Ball Averager for Reference Sphere Calibrations

January 1, 2005
Author(s)
Ulf Griesmann, Quandou (. Wang, Johannes A. Soons, Remi Carakos
When measuring the form errors of precision optics with an interferometer, the calibration of the reference wavefront is of central importance. Ball averaging, or random ball testing, has in recent years emerged as a robust method for calibrating spherical

A Survey of Key Comparisons

January 1, 2005
Author(s)
Adriana Hornikova, William F. Guthrie
Key Comparisons are international inter-laboratory studies used to establish the degree of equivalence between national measurement standards. These studies, carried out by National Metrology Institutes, are time-consuming, but necessary to facilitate

A unifying Standard for Interfacing Transducers to Networks - IEEE-1451.0

January 1, 2005
Author(s)
James Wiczer, Kang B. Lee
A committee of industry and government technology experts has completed a three-year effort to develop a set of specifications that consist of a unifying set of functions, communications protocols, a common set of commands, and electronic data sheet
Displaying 36526 - 36550 of 74129