Fibre Tip Sensors for Localised Temperature Sensing Based on Rare Earth-Doped Glass Coatings

Sensors

Erik P. Schartner¹ 

关键词: rare earth;    thermometry;    point sensing;    optical fibres;    optical fibre sensing;   

DOI  :  10.3390/s141121693

来源: mdpi

【 摘 要 】

We report the development of a point temperature sensor, based on monitoring upconversion emission from erbium:ytterbium-doped tellurite coatings on the tips of optical fibres. The dip coating technique allows multiple sensors to be fabricated simultaneously, while confining the temperature-sensitive region to a localised region on the end-face of the fibre. The strong response of the rare earth ions to changing temperature allows a resolution of 0.1–0.3 °C to be recorded over the biologically relevant range of temperatures from 23–39 °C.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.