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Article RSE 15002047

Optical chemical sensor for oil filled power transformer

Article

IEEE Photonics Technologies Doi: 978-8-8872-3718-4, Maggio-2014.

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L. De Maria (RSE SpA), N. Cennamo (Università di Napoli), L. Zeni (Università di Napoli), G. D Agostino (Università di Pavia), M. Pesavento (Università di Pavia)

MON4-GRID 2015 - Management, monitoring and control of the transmission grid

Preliminary results of feasibility assessment of an optical Surface Plasmon Resonance sensor, exploiting a Plastic Optical Fiber (POF) platform, for an early and high sensitivity chemical agents of interest are reported.

Preliminary results of feasibility assessment of an optical Surface Plasmon Resonance (SPR) based sensor, exploiting a plastic optical fiber (POF) platform, for an early and high sensitivity detection of chemical agents of interest are reported. In this investigation, a Molecularly Imprinted Polymer (MIP) has been used as an artificial receptor in connection with SPR transduction in POF for the selective detection of small molecules in oil-filled power transformer.

The proposed device has been experimentally tested for the detection of furfural (furan-2-carbaldehyde), so that the MIP is specific for this substance. This particular kind of synthetic receptor has been used instead of the most usual bio-receptors, in view of the fact that the sample matrix here considered is the transformer oil. Actually, it is widely recognized that bio-receptors poorly perform in nonaqueous media.

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