Vol. 92, Issue 5, May 2008, pp.1-9

A Single Rod Multi-modality Multi-interface Level Sensor Using an AC Current Source

Abdulgader Hwili and Wuqiang Yang

School of Electrical and Electronic Engineering, The University of Manchester

Sackville Street, Manchester M60 1QD, UK

Abdulgadir.Mohammed@postgrad.manchester.ac.uk

Received: 26 March 2008   /Accepted: 20 May 2008   /Published: 26 May 2008

Abstract: Crude oil separation is an important process in the oil industry. To make efficient use of the separators, it is important to know their internal behaviour, and to measure the levels of multi-interfaces between different materials, such as gas-foam, foam-oil, oil-emulsion, emulsion-water and water-solids. A single-rod multi-modality multi-interface level sensor is presented, which has a current source, and electromagnetic modalities. Some key issues have been addressed, including the effect of salt content and temperature i.e. conductivity on the measurement.

Keywords: Oil separator, Multi-interface level, Capacitance sensor, Electromagnetic sensor, Salinity, AC current source

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