A system for traceable measurement of the microwave complex permittivity of liquids at high pressures and temperatures

G. A. Dimitrakis; M. George; M. Poliakoff; I. Harrison; J. Robinson; S. Kingman; E. Lester; A. P. Gregory; K. Lees

doi:10.1088/0957-0233/20/4/045901

A system for traceable measurement of the microwave complex permittivity of liquids at high pressures and temperatures

G. A. Dimitrakis, M. George, M. Poliakoff, I. Harrison, J. Robinson, S. Kingman, E. Lester, A. P. Gregory, K. Lees

Research output: Journal Publication › Article › peer-review

17 Citations (Scopus)

Abstract

A system has been developed for direct traceable dielectric measurements on liquids at high pressures and temperatures. The system consists of a coaxial reflectometric sensor terminated by a metallic cylindrical cell to contain the liquid. It has been designed for measurements on supercritical liquids, but as a first step measurements on dielectric reference liquids were performed. This paper reports on a full evaluation of the system up to 2.5 GHz using methanol, ethanol and n-propanol at pressures up to 9 MPa and temperatures up to 273 °C. A comprehensive approach to the evaluation of uncertainties using Monte Carlo modelling is used.

Original language	English
Article number	045901
Journal	Measurement Science and Technology
Volume	20
Issue number	4
DOIs	https://doi.org/10.1088/0957-0233/20/4/045901
Publication status	Published - 2009
Externally published	Yes

Keywords

Dielectric liquids
Dielectric properties measurements
Microwave measurement
Permittivity measurement

ASJC Scopus subject areas

Instrumentation
Engineering (miscellaneous)
Applied Mathematics

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10.1088/0957-0233/20/4/045901

Cite this

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abstract = "A system has been developed for direct traceable dielectric measurements on liquids at high pressures and temperatures. The system consists of a coaxial reflectometric sensor terminated by a metallic cylindrical cell to contain the liquid. It has been designed for measurements on supercritical liquids, but as a first step measurements on dielectric reference liquids were performed. This paper reports on a full evaluation of the system up to 2.5 GHz using methanol, ethanol and n-propanol at pressures up to 9 MPa and temperatures up to 273 °C. A comprehensive approach to the evaluation of uncertainties using Monte Carlo modelling is used.",

keywords = "Dielectric liquids, Dielectric properties measurements, Microwave measurement, Permittivity measurement",

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AU - George, M.

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AU - Harrison, I.

AU - Robinson, J.

AU - Kingman, S.

AU - Lester, E.

AU - Gregory, A. P.

AU - Lees, K.

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AB - A system has been developed for direct traceable dielectric measurements on liquids at high pressures and temperatures. The system consists of a coaxial reflectometric sensor terminated by a metallic cylindrical cell to contain the liquid. It has been designed for measurements on supercritical liquids, but as a first step measurements on dielectric reference liquids were performed. This paper reports on a full evaluation of the system up to 2.5 GHz using methanol, ethanol and n-propanol at pressures up to 9 MPa and temperatures up to 273 °C. A comprehensive approach to the evaluation of uncertainties using Monte Carlo modelling is used.

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KW - Permittivity measurement

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A system for traceable measurement of the microwave complex permittivity of liquids at high pressures and temperatures

Abstract

Keywords

ASJC Scopus subject areas

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