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AN INVAR-BASED FABR...
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Silander, IsakUmeå University, Sweden
(author)
AN INVAR-BASED FABRY-PEROT CAVITY REFRACTOMETER WITH AGALLIUM FIXED-POINT CELL FOR ASSESSMENT OF PRESSURE
- Article/chapterEnglish2020
Publisher, publication year, extent ...
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2020-12-31
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IMEKO International Measurement Confederation,2020
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:ri-51981
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https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-51981URI
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https://doi.org/10.21014/acta_imeko.v9i5.987DOI
Supplementary language notes
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Language:English
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Summary in:English
Part of subdatabase
Classification
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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This project (QuantumPascal, 18SIB04) hasreceived funding from the EMPIR programme cofinanced by the Participating States and from theEuropean Union's Horizon 2020 research andinnovation programme. The authors alsoacknowledge support from the Swedish ResearchCouncil (VR) (Project No. 621-2015-04374); theUmeå University Industrial Doctoral School (IDS);the Vinnova Metrology Programme (Project Nos.2018-04570 and 2019-05029); and the KempeFoundations (Project No. 1823, U12).
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An Invar-based Fabry-Perot cavity refractometer equipped with an automated, miniaturized galliumfixed-point cell for assessment of pressure is presented. The use of an Invar cavity spacer has previously demonstrated pressure assessments with sub-0.1 ppm precision. The fixed-point cell, whose design and implementation are presented here, provides a reference for temperature assessment of the gas inside the cavity with an uncertainty of 4 ppm. This opens up for a self-contained system for realization of the Pascal with an accuracy in the low ppm range. This is an important step towards disseminating the Pascal through fundamental principles.
Subject headings and genre
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Refractometry
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Fabry-Perot cavity
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Temperature
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Gallium.
Added entries (persons, corporate bodies, meetings, titles ...)
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Forssen, ClaytonRISE,Mätteknik,Umeå University, Sweden
(author)
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Zakrisson, JohanUmeå University, Sweden(Swepub:ri)johanza@ri.se
(author)
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Zelan, MartinRISE,Mätteknik(Swepub:ri)MartinZe@ri.se
(author)
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Axner, OveUmeå University, Sweden
(author)
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Umeå University, SwedenMätteknik
(creator_code:org_t)
Related titles
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In:Acta IMEKO: IMEKO International Measurement Confederation:5, s. 293-2982221-870X
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