Abstract

The use of phosphor thermometry in generator rotor temperature monitoring over the 60–150°C range has been investigated, using measurements of the decay time of the visible emission stimulated in europium-doped yttrium oxysulfide by UV laser excitation. A fiber-optic system for light delivery and collection has been designed and tested in laboratory measurements on a rotating disk. Measurements of the effect of oil and magnetic field on sensor performance are reported.

© 1987 Optical Society of America

Phosphor-based thermometry of the rotor in a high-power electrical generator

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