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Traceable measurements of the static permittivity of dielectric reference liquids over the temperature range 5 - 50 ºC.

Gregory, A P; Clarke, R N (2005) Traceable measurements of the static permittivity of dielectric reference liquids over the temperature range 5 - 50 ºC. Meas. Sci. Technol., 16. pp. 1506-1516.

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Abstract

Measurements of the static permittivity of pure samples of eight polar liquids - acetone, butan-1-ol, dimethyl sulphoxide, ethanediol, ethanol, methanol, propan-1-ol and water - and two non-polar liquids - cyclohexane and silicone oil - were measured in a shielded micrometer-driven, parallel-plate admittance cell at temperatures from 5 to 50 ºC. The experimental method, which requires measurements of capacitance using a four terminal-pair impedance analyser, is described in detail. The full measurement results have been tabulated separately in a National Physical Laboratory report. The present paper provides a comparative study of these latest results with previously published data and also describes the details of the uncertainty analyses employed. Admittance cell measurement techniques are also briefly reviewed to put this work into context.

Item Type: Article
Keywords: microwave measurements
Subjects: Electromagnetics
Electromagnetics > Electromagnetic Materials
Last Modified: 02 Feb 2018 13:16
URI: http://eprintspublications.npl.co.uk/id/eprint/3272

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