Abstract
An extrinsic optical fibre temperature sensor has been investigated and results are presented. A coating consists of a combination of two inorganic phosphors. 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 peak emission intensities are calculated and analysed. The phosphor mixture is coated onto a Pyrex beaker. Boiling water is poured into beaker and the ratio is calculated as the temperature of the water decreases from 80°C to 30°C. Results show an increasing ratio for decreasing temperature. This paper describes the testing of the coating and its application, as part of a temperature sensor, for monitoring surface temperatures in electromagnetically harsh industrial environments. Phosphors, fibre optic sensor, temperature, microwave, luminescent coating.
| Original language | English |
|---|---|
| Pages (from-to) | 80-83 |
| Number of pages | 4 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 5502 |
| DOIs | |
| Publication status | Published - 2004 |
| Event | Second European Workshop on Optical Fibre Sensors, EWOFS'04 - Santander, Spain Duration: 9 Jun 2004 → 11 Jun 2004 |
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