Investigation of a luminescent coating for monitoring liquid temperature in a microwave environment

McSherry, M.; Fitzpatrick, Colin; Lewis, Elfed

doi:10.1109/icsens.2003.1278959

Cited by 1 publication

(3 citation statements)

References 5 publications

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“…The table shows an increasing ratio for decreasing temperature from 80CC to 30CC. These results correspond with previous results obtained whereby a decreasing ratio for increasing temperature from 30CC to 120CC was demonstrated in a dry environment [4]. The boiling point of water is l00C but as the boiling water was poured into the coated beaker, the temperature of the water decreased quickly as it adapted to its new environment.…”

Section: Resultssupporting

confidence: 93%

“…This paper presents recent developments of an extrinsic optical fibre temperature sensor. Preliminary results in a dry environment show a decreasing ratio for increasing temperature in the range 3OC to l2OC and have previously been reported [4]. A coating is applied to the bottom surface of a vessel in which the temperature is of interest.…”

Section: Introductionmentioning

confidence: 78%

“…The first peak represents the photoluminescent emission at 570nm from phosphor QUMK58/F-D1 .The second peak represents the emission at 660nm from the second phosphor EQD25/N-Ul . Both emissions correspond to the Manufacturers datasheet [4]. The table displayed in Figure 2 shows a ratio value for each conesponding temperature of the water as it decreases from 80CC to 30CC in steps of 10CC.…”

Section: Resultsmentioning

confidence: 99%

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

2004

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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 8OC to 3OC. 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.