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

18 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

Free 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.",

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AU - Dimitrakis, G. A.

AU - George, M.

AU - Poliakoff, M.

AU - Harrison, I.

AU - Robinson, J.

AU - Kingman, S.

AU - Lester, E.

AU - Gregory, A. P.

AU - Lees, K.

PY - 2009

Y1 - 2009

N2 - 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.

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.

KW - Dielectric liquids

KW - Dielectric properties measurements

KW - Microwave measurement

KW - Permittivity measurement

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VL - 20

JO - Measurement Science and Technology

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ER -

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

Abstract

Free Keywords

ASJC Scopus subject areas

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