Investigation and development of a fibre optic temperature sensor for monitoring liquid temperature in a high power microwave environment

Research output: Contribution to journalConference articlepeer-review

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 languageEnglish
Pages (from-to)80-83
Number of pages4
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5502
DOIs
Publication statusPublished - 2004
EventSecond European Workshop on Optical Fibre Sensors, EWOFS'04 - Santander, Spain
Duration: 9 Jun 200411 Jun 2004

Fingerprint

Dive into the research topics of 'Investigation and development of a fibre optic temperature sensor for monitoring liquid temperature in a high power microwave environment'. Together they form a unique fingerprint.

Cite this