Fibre-optic sensors for partial discharge-generated ultrasound in elastomeric high-voltage insulation materials

P. Rohwetter; W. Habel

doi:10.1117/12.2025824

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20 May 2013 Fibre-optic sensors for partial discharge-generated ultrasound in elastomeric high-voltage insulation materials

P. Rohwetter, W. Habel

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Proceedings Volume 8794, Fifth European Workshop on Optical Fibre Sensors; 879407 (2013) https://doi.org/10.1117/12.2025824
Event: Fifth European Workshop on Optical Fibre Sensors, 2013, Krakow, Poland

Abstract

Recent progress in the development of ultrasonic fibre-optic sensors for detecting acoustic emission from partial discharge in elastomeric insulations is presented. These sensors are an important part of a proposed comprehensive scheme for the fibre-optic monitoring of cable accessories. After specifying the underlying design goals the improved fibre-optic sensor design is outlined. It is experimentally shown that it offers about ten-fold improvement over a previously investigated resonant cantilever-type design in terms of detection limit, making it competitive with conventional piezoelectric transducers, however with the added compatibility with strong electrical fields and electromagnetically noisy environments.

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P. Rohwetter and W. Habel "Fibre-optic sensors for partial discharge-generated ultrasound in elastomeric high-voltage insulation materials", Proc. SPIE 8794, Fifth European Workshop on Optical Fibre Sensors, 879407 (20 May 2013); https://doi.org/10.1117/12.2025824

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