Title :
Investigation of a luminescent coating for monitoring liquid temperature in a microwave environment
Author :
McSherry, Mary ; Fitzpatrick, Colin ; Lewis, Elfed
Author_Institution :
Dept. of Electron. & Comput. Eng., Limerick Univ., Ireland
Abstract :
An extrinsic optical fibre temperature sensor has been investigated and preliminary results are presented. An active coating is used which consists of a mixture of two phosphor powders. Thermal quenching dominates the luminescent characteristics of one phosphor at temperatures in the range of interest while the other more stable phosphor is used as a reference. Ratios of their emission intensities are calculated and analysed. Preliminary results show a decreasing ratio for increasing temperature. This paper describes initial testing of the coating and its application, as part of a temperature sensor, for monitoring surface temperatures in electromagnetically harsh industrial environments.
Keywords :
coatings; fibre optic sensors; phosphors; powders; quenching (thermal); temperature sensors; liquid temperature monitoring; luminescent coating; microwave environment; optical fibre sensor; phosphor powders; surface temperatures; temperature sensor; thermal quenching; Coatings; Costs; Manufacturing; Optical fibers; Optical materials; Optical sensors; Phosphors; Temperature measurement; Temperature sensors; Thermal quenching;
Conference_Titel :
Sensors, 2003. Proceedings of IEEE
Print_ISBN :
0-7803-8133-5
DOI :
10.1109/ICSENS.2003.1278959
