UV sensing optode for composite materials environment monitoring

Abstract

The polymeric optical fibre technology can be successfully used for UV spectrum range radiation measurements.Anew type of fluorescent optical fibre optode is presented. The used fluorescent wave-shifter was used for UV-VIS conversion and radiation measurements. The linear characteristic with sensitivity 480 mW−1 is presented for UV range 7.2-13.6 mW. Presented optode construction advantages (small dimensions, low weight, high immunity to electromagnetic fields and distributed sensor architecture possibility) are attractive for numerous composite based engineering applications.

A Spiropyran-Doped Poly(methyl methacrylate) Matrix for Sensor Applications

“…Many polymer matrices are available for the production of photosensitive materials: various polymethacrylates, polyvinyl acetate (PVA), cellulose acetate (CA), polystyrene (PS), and others [12,16,21]. PMMA is widely used in sensor design and fiber optics technology [22,23]. A PMMA matrix doped with spiropyrans is one of the most prominent photochromic optical sensor materials due to the synergy of the high transparency and thermoplasticity of polar polymers and the pronounced isomerization of the filling photochromic compounds [2,24].…”