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A new approach to understanding the frequency response of mineral oil

A new approach to understanding the frequency response of mineral oil
A new approach to understanding the frequency response of mineral oil
Dielectric spectroscopy is non-invasive diagnostic method and can give information about dipole relaxation, electrical conduction and structure of molecules. Since the creation of charge carriers in mineral oil is not only from dissociation but also injection from electrodes, the injection current cannot be simply ignored. The polarization caused by the charge injection has been studied in this paper. Based on our research, if the mobility of the injected charge carriers is fast enough so that they can reach the opposite electrode, the current caused by the injection will contribute only to the imaginary part of the complex permittivity and this part of the complex permittivity will decrease with the frequency with a slope of -1 which is in a good agreement with the experimental result. The classic ionic drift and diffusion model and this injection model will be combined to make an improved model. In this paper, the frequency responses of three different kinds of mineral oils have been measured, and this modified model has been used to simulate the experiment result. Since there is only one unknown parameter in this improved model, a better understanding of the frequency response in mineral oil can be achieved
978-1-4799-2063-1
1-4
Zhou, Yuan
22d46dcb-26b9-4416-80a3-efc58d81a061
Hao, Miao
fb7006e0-07c0-46f5-9279-e30a7d3bd614
Chen, George
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Wilson, Gordon
fd02d259-a5b6-44ce-be29-47073c552c5b
Jarman, Paul
f0133a9d-702e-489a-afc5-2950eeba10ab
Zhou, Yuan
22d46dcb-26b9-4416-80a3-efc58d81a061
Hao, Miao
fb7006e0-07c0-46f5-9279-e30a7d3bd614
Chen, George
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Wilson, Gordon
fd02d259-a5b6-44ce-be29-47073c552c5b
Jarman, Paul
f0133a9d-702e-489a-afc5-2950eeba10ab

Zhou, Yuan, Hao, Miao, Chen, George, Wilson, Gordon and Jarman, Paul (2014) A new approach to understanding the frequency response of mineral oil. 2014 IEEE 18th International Conference on Dielectric Liquids (ICDL), Slovenia. 29 Jun - 03 Jul 2014. pp. 1-4 . (doi:10.1109/ICDL.2014.6893143).

Record type: Conference or Workshop Item (Paper)

Abstract

Dielectric spectroscopy is non-invasive diagnostic method and can give information about dipole relaxation, electrical conduction and structure of molecules. Since the creation of charge carriers in mineral oil is not only from dissociation but also injection from electrodes, the injection current cannot be simply ignored. The polarization caused by the charge injection has been studied in this paper. Based on our research, if the mobility of the injected charge carriers is fast enough so that they can reach the opposite electrode, the current caused by the injection will contribute only to the imaginary part of the complex permittivity and this part of the complex permittivity will decrease with the frequency with a slope of -1 which is in a good agreement with the experimental result. The classic ionic drift and diffusion model and this injection model will be combined to make an improved model. In this paper, the frequency responses of three different kinds of mineral oils have been measured, and this modified model has been used to simulate the experiment result. Since there is only one unknown parameter in this improved model, a better understanding of the frequency response in mineral oil can be achieved

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Published date: 30 June 2014
Venue - Dates: 2014 IEEE 18th International Conference on Dielectric Liquids (ICDL), Slovenia, 2014-06-29 - 2014-07-03
Organisations: EEE

Identifiers

Local EPrints ID: 373696
URI: http://eprints.soton.ac.uk/id/eprint/373696
ISBN: 978-1-4799-2063-1
PURE UUID: e5ad4b03-81a7-4379-81f1-f60266286734

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Date deposited: 02 Feb 2015 08:57
Last modified: 19 Jul 2019 20:53

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