How Accurate Is the Standard Second?

Philosophy of Science 78 (5):1082-1096 (2011)
Abstract
Contrary to the claim that measurement standards are absolutely accurate by definition, I argue that unit definitions do not completely fix the referents of unit terms. Instead, idealized models play a crucial semantic role in coordinating the theoretical definition of a unit with its multiple concrete realizations. The accuracy of realizations is evaluated by comparing them to each other in light of their respective models. The epistemic credentials of this method are examined and illustrated through an analysis of the contemporary standardization of time. I distinguish among five senses of ‘measurement accuracy’ and clarify how idealizations enable the assessment of accuracy in each sense.
Keywords Measurement  Accuracy  Standards  Physics  Models  Idealizations
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DOI 10.1086/662268
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References found in this work BETA
Some Varieties of Robustness.Jim Woodward - 2006 - Journal of Economic Methodology 13 (2):219-240.

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Citations of this work BETA
Old and New Problems in Philosophy of Measurement.Eran Tal - 2013 - Philosophy Compass 8 (12):1159-1173.
The Appeal to Robustness in Measurement Practice.Basso Alessandra - 2017 - Studies in History and Philosophy of Science Part A 65:57-66.
Making Time: A Study in the Epistemology of Measurement.Eran Tal - 2016 - British Journal for the Philosophy of Science 67 (1):297-335.
Measuring Effectiveness.Jacob Stegenga - 2015 - Studies in History and Philosophy of Science Part C: Studies in History and Philosophy of Biological and Biomedical Sciences 54:62-71.

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