Gauge block calibration by optical interferometry at the National Research Council Canada

Par Conseil national de recherches du Canada

Téléchargement	Voir la version finale : Gauge block calibration by optical interferometry at the National Research Council Canada (PDF, 653 Kio)
Auteur	Rechercher : Decker, J. E.¹; Rechercher : Pekelsky, J. R.¹
Affiliation	Conseil national de recherches du Canada. Institut des étalons nationaux de mesure du CNRC
Commanditaire	Rechercher : National Research Council of Canada
Format	Texte, Rapport technique
Conférence	Measurement Science Conference, January 23–24, 1997, Pasadena, California, United States
Résumé	The definition of the SI unit for length, the metre, is the length of the path travelled by light in a vacuum during a time interval of 1/299792\|458 of a second. Optical interferometry offers a measuring method to determine the number of wavelengths of light that span the length of the gauge block. The instrumentation and methods developed at the National Research Council of Canada (NRC) for this specialized interferometric technique are described. Also discussed are the details of the measurement procedure. An outline of the uncertainty attributed to this system is evaluated in accordance with the ISO Guide to the Uncertainty in Measurement. Finally, planned improvements to the NRC system are briefly discussed.
Date de publication	1997
Langue	anglais
Numéro du CNRC	NRCC 40002 NRC-INMS-243
Numéro NPARC	8897319
Exporter la notice	Exporter en format RIS
Signaler une correction	Signaler une correction (s'ouvre dans un nouvel onglet)
Identificateur de l’enregistrement	521ea7a1-02c2-4dd7-a4f9-f1290cf53cdc
Enregistrement créé	2009-04-22
Enregistrement modifié	2022-11-16

Date de modification :: 2024-07-03