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A consequence of the development of optical fibre technology for communications has been the application of optical fibres to the sensing of a wide range of physical and chemical parameters. Many of the properties of fibres that are important for communications' are significant for sensing: these include their insulating nature, their small dimensions, and their immunity to high voltage and electromagnetic radiation. These attributes are particularly significant for sensing electrical discharges, and this review presents a discussion of the potential of optical fibre sensing for discharge parameters, the results of some recent optical fibre measurements made on corona and glow discharges, and suggestions for other discharge. probing approaches using optical fibres.

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