Trazabilidad
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Definición
Una cadena ininterrumpida y documentada de calibraciones que vincula un resultado de medición con un patrón de medición nacional o internacional, cada una con incertidumbres declaradas.
Explicación
A factory floor caliper is calibrated against a reference gauge block, which was calibrated against a master gauge block, which was calibrated at a national metrology institute (such as NIST in the US) against the SI meter definition. Each step in this chain has a calibration certificate with quantified uncertainty. Without traceability, measurements from different facilities cannot be reliably compared.
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RELATED TERMS
Factor de Conversión
Un multiplicador numérico utilizado para convertir una cantidad de una unidad a otra.
Precisión
El grado de refinamiento en una medición, indicado por el número de cifras significativas.
Exactitud
Cuán cercana es una medición al valor verdadero de la magnitud que se mide.
Análisis Dimensional
Un método para convertir unidades multiplicando por factores de conversión equivalentes a 1.
Milla Náutica
Una unidad de distancia usada en navegación marítima y aérea, equivalente a 1.852 metros.