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- Silander, Isak,1980-Umeå universitet,Institutionen för fysik (author)
An invar-based fabry-perot cavity refractometer with a gallium fixed-point cell for assessment of pressure
- Article/chapterEnglish2020
Publisher, publication year, extent ...
- International Measurement Confederation (IMEKO),2020
- electronicrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:umu-180520
- https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-180520URI
- https://doi.org/10.21014/ACTA_IMEKO.V9I5.987DOI
Supplementary language notes
- Language:English
- Summary in:English
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- SwePubSwePub
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Notes
- An Invar-based Fabry-Perot cavity refractometer equipped with an automated, miniaturized gallium fixed-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
- NATURVETENSKAP Fysik Den kondenserade materiens fysik hsv//swe
- NATURAL SCIENCES Physical Sciences Condensed Matter Physics hsv//eng
- Fabry-Perot cavity
- Gallium
- Refractometry
- Temperature
Added entries (persons, corporate bodies, meetings, titles ...)
- Forssén, ClaytonUmeå universitet,Institutionen för fysik(Swepub:umu)clfo0003 (author)
- Zakrisson, JohanUmeå universitet,Institutionen för fysik(Swepub:umu)joza0002 (author)
- Zelan, MartinMeasurement Technology, RISE Research Institutes of Sweden, Borås, Sweden (author)
- Axner, OveUmeå universitet,Institutionen för fysik(Swepub:umu)ovax0001 (author)
- Umeå universitetInstitutionen för fysik (creator_code:org_t)
Related titles
- In:Acta IMEKO: International Measurement Confederation (IMEKO)9:5, s. 293-2980237-028X2221-870X
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