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Detection of hydrocarbon fuel spills using a distributed fibre optic sensor

MacLean, Alistair and Moran, C. and Johnstone, W. and Culshaw, B. and Marsh, D. and Parker, P. (2001) Detection of hydrocarbon fuel spills using a distributed fibre optic sensor. Sensors and Actuators A: Physical, 109 (1). pp. 60-67. ISSN 0924-4247

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Abstract

A fibre optic sensor capable of the distributed detection of multiple hydrocarbon fuel and solvent spills is described. The sensor incorporates liquid-swelling polymers that convert the swelling into a microbend force on an optical fibre when activated. Sensor interrogation is conducted using a standard optical time domain reflectometry (OTDR) technique. This provides the potential of locating target hydrocarbon fuel and solvent spills at many separate positions along the sensor length. Typical sensor response time after exposure to the fuel is 30s using the current design. Sensors that are capable of locating 1m long spill events with a location accuracy of 2.5m over a range of 2km are reported. A brief description of the underlying technology and the material evaluation tests are presented followed by initial sensor evaluation results. Laboratory and experimental field trials demonstrating repeatability and the simultaneous location of multiple fuel spills are summarised. Automatic detection of events using a custom-built OTDR instrument is briefly discussed and finally the potential applications for this type of sensor technology are outlined.

Item type: Article
ID code: 3521
Keywords: hydrocarbon fuel, fibre optic sensor, OTDR, distributed optical sensing, liquid hydrocarbon detection, fuel leak detection, Electrical engineering. Electronics Nuclear engineering, Instrumentation, Surfaces, Coatings and Films, Metals and Alloys, Electronic, Optical and Magnetic Materials, Electrical and Electronic Engineering, Condensed Matter Physics
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Professional Services > Operations and Maintenance
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Related URLs:
    Depositing user: Strathprints Administrator
    Date Deposited: 18 Jun 2007
    Last modified: 04 Sep 2014 10:24
    URI: http://strathprints.strath.ac.uk/id/eprint/3521

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