Force Transmission Error Analysis for a High-Pressure Single-Sinker Magnetic Suspension Densimeter

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Force Transmission Error Analysis for a High-Pressure Single-Sinker Magnetic Suspension Densimeter

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dc.contributor.author Cristancho, Diego
dc.contributor.author Mantilla, Ivan
dc.contributor.author Ejaz, Saquib
dc.contributor.author Hall, Kenneth R
dc.contributor.author Iglesias Silva, Gustavo
dc.contributor.author Atilhan, Mert
dc.date.accessioned 2010-01-27T18:14:24Z
dc.date.available 2010-01-27T18:14:24Z
dc.date.issued 2010-01-05
dc.identifier.uri http://hdl.handle.net/10576/10645
dc.description.abstract The magnetic suspension densimeter (MSD) is a sophisticated, stateof- the-art device that provides extremely accurate results for density measurements. The MSD uses a magnetic technique to couple a mass inside a measurement cell with an external mass balance for mass measurement. This article presents a force transmission error (FTE) analysis for a high-pressure, single-sinker MSD. Due to the magnetic working principle of the apparatus, magnetic properties of the high-pressure cell and external magnetic fields affect the measurements slightly. For the analysis, McLinden et al. suggest making measurements using two different sinkers, a titanium sinker and a copper sinker, having the same mass. The measurements cover densities for methane, ethane, carbon dioxide and nitrogen over the temperature range from 265K to 450K (±5 mK stability) up to 180MPa (uncertainty of 0.01% full scale: 200MPa). Comparing and manipulating the measurements permit determination of apparatus and fluid specific effects that contribute to the FTE. For this MSD, the apparatus effect is about 200 ppm, which effectively masks any fluid specific effect. A comprehensive analysis of the FTE produces a uniform deviation for density values of about 0.05% at 2σ across the full range of pressure. en_US
dc.language.iso en_US en_US
dc.publisher Springer Science and Business Media en_US
dc.relation.ispartofseries Int J Thermophys;DOI 10.1007/s10765-010-0702-3
dc.subject Densimeter en_US
dc.subject Force Transmission Error en_US
dc.subject High Pressure en_US
dc.subject Magnetic Suspension Coupling en_US
dc.title Force Transmission Error Analysis for a High-Pressure Single-Sinker Magnetic Suspension Densimeter en_US
dc.type Article en_US

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