Do quantities have unique true values? The problem of non-uniqueness in measurement - Archive ouverte HAL
Article Dans Une Revue Measurement - Journal of the International Measurement Confederation (IMEKO) Année : 2023

Do quantities have unique true values? The problem of non-uniqueness in measurement

Les grandeurs ont-elles des valeurs vraies uniques ? Le problème de non-unicité dans la mesure

Fabien Grégis

Résumé

The “problem of non-uniqueness” objects to the idea that an empirical quantity is characterized by a unique “true value”: representational structures involving single-valued quantities in fact conflict with the complexity of the systems under examination. The roots of the problem are tied to the model-based nature of measurement. Metrologists answered it in terms of uncertainty, but erred by providing an epistemic answer to a representational problem. One should rather look at it in terms of the validity and the degree of refinement of the models that are involved in a measurement. I thus pro-pose to draw on approximate truth to reconstruct an alternate understanding of “true value”.
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Dates et versions

hal-04568001 , version 1 (03-05-2024)

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Fabien Grégis. Do quantities have unique true values? The problem of non-uniqueness in measurement. Measurement - Journal of the International Measurement Confederation (IMEKO), 2023, 221, pp.113498. ⟨10.1016/j.measurement.2023.113498⟩. ⟨hal-04568001⟩

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