A determination of Planck's constant using the NRC watt balance

A determination of Planck's constant using the NRC watt balance

We have measured Planck's constant and have obtained a value of 6.626 070 34(12) × 10−34 J s. To our knowledge this measurement of h has the lowest uncertainty reported to date. This result has been obtained from measurements of four masses of different material and nominal values varying from...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Metrologia 2014-04, Vol.51 (2), p.S5-S14
Hauptverfasser: Sanchez, C A, Wood, B M, Green, R G, Liard, J O, Inglis, D
Format: Artikel
Sprache:eng
Schlagworte:
kilogram
Knowledge
Measurement
Metrology
Planck's constant
Uncertainty
watt balance
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:We have measured Planck's constant and have obtained a value of 6.626 070 34(12) × 10−34 J s. To our knowledge this measurement of h has the lowest uncertainty reported to date. This result has been obtained from measurements of four masses of different material and nominal values varying from 1 kg to 250 g. The experimental procedures and the measurement uncertainties are described in detail.
ISSN:0026-1394
1681-7575
DOI:10.1088/0026-1394/51/2/S5