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The short-term perf...
The short-term performances of two independent gas modulated refractometers for pressure assessments
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- Forssén, Clayton (författare)
- Umeå universitet,RISE,Umeå University, Sweden,Institutionen för fysik,Measurement Science and Technology, RISE Research Institutes of Sweden, Borås, Sweden
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- Silander, Isak, 1980- (författare)
- Umeå universitet,Institutionen för fysik,Umeå University, Sweden
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- Zakrisson, Johan (författare)
- Umeå universitet,Institutionen för fysik,Umeå University, Sweden
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- Axner, Ove (författare)
- Umeå universitet,Institutionen för fysik,Umeå University, Sweden
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- Zelan, Martin (författare)
- RISE,Mätteknik,Measurement Science and Technology, RISE Research Institutes of Sweden, Borås, Sweden
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(creator_code:org_t)
- 2021-09-18
- 2021
- Engelska.
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Ingår i: Sensors. - : MDPI. - 1424-8220. ; 21:18
- Relaterad länk:
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https://doi.org/10.3...
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https://umu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.3...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Refractometry is a powerful technique for pressure assessments that, due to the recent redefinition of the SI system, also offers a new route to realizing the SI unit of pressure, the Pascal. Gas modulation refractometry (GAMOR) is a methodology that has demonstrated an outstanding ability to mitigate the influences of drifts and fluctuations, leading to long-term precision in the 10−7 region. However, its short-term performance, which is of importance for a variety of applications, has not yet been scrutinized. To assess this, we investigated the short-term performance (in terms of precision) of two similar, but independent, dual Fabry–Perot cavity refractometers utilizing the GAMOR methodology. Both systems assessed the same pressure produced by a dead weight piston gauge. That way, their short-term responses were assessed without being compromised by any pressure fluctuations produced by the piston gauge or the gas delivery system. We found that the two refractometer systems have a significantly higher degree of concordance (in the 10−8 range at 1 s) than what either of them has with the piston gauge. This shows that the refractometry systems under scrutiny are capable of assessing rapidly varying pressures (with bandwidths up to 2 Hz) with precision in the 10−8 range. © 2021 by the authors.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- Fabry–Perot cavity
- Gas modulation
- Metrology
- Modulation techniques
- Pressure
- Refractometry
- Short-term performance
- Gages
- Pistons
- Dead weights
- Gas delivery system
- Piston gauges
- Pressure fluctuation
- Short term
- Refractometers
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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