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Uncertainty of gauge block calibration by mechanical comparison: a worked example for gauge blocks of dissimilar materials
Home
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Uncertainty of gauge block calibration by mechanical comparison: a worked example for gauge blocks of dissimilar materials
Uncertainty of gauge block calibration by mechanical comparison: a worked example for gauge blocks of dissimilar materials
JD
Jennifer E. Decker
Jennifer E. Decker
AU
Anthony Ulrich
Anthony Ulrich
JP
James R. Pekelsky
James R. Pekelsky
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30 September 1998
conference paper
Published by
SPIE-Intl Soc Optical Eng
Vol. 3477
,
225-246
https://doi.org/10.1117/12.323113
Abstract
The definition of gauge black length,and the lowest- uncertainty gauge block calibrations, derive their link to the definition of the meter through the technique of optical interferometry using calibrated optical wavelengths. Following interferometric calibration of gauge blocks, the technique of mechanical comparison of gauge blocks is largely used for the dissemination of the meter. A measurement scenario for the case of low-uncertainty gauge block calibration in which the working standard and client gauge blocks are made of dissimilar materials is described. The correction for stylus deformation is determined experimentally. A detailed tutorial on evaluating the uncertainties for this gauge block calibration in accordance with the ISO Guide to the expression of uncertainty in measurement is reported, including discussion of degrees of freedom and correlations.© (1998) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Keywords
CALIBRATION
DEGREE OF FREEDOM
OPTICAL INTERFEROMETRY
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Cited by 3 articles