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Two-dimensional photoluminescence (PL) image from sensor material is evaluated for fluorescence thermometer application. Two dimensional PL image is observed using CCD video camera under blue and/or UV LED illuminations. Red colored PL image can be observed from ruby sensor under illumination of blue LED. Brightness of red signal of PL image from ruby sensor varies linearly with temperature from 20...
Fluorescence thermometer based on peak intensity and peak intensity ratio of photoluminescence (PL) is developed using a silicone composite sensor with Cr doped spinel crystal. Standard deviation of temperature coefficient of PL peak intensity ratio is much smaller than those of PL peak intensity. PL peak intensity ratio is found to be useful for temperature measurement. Fluorescence thermometer based...
A fiber-optic fluorescence thermometer using the bulk fluorescence material is a useful technique for temperature measurement in extraordinary conditions. The thin film fabrication of the fluorescence material enables the temperature mapping of an object with temperature distribution. In this paper, the fluorescence films are fabricated by various fabrication methods such as laser ablation and spin...
Fluorescence sensor sheet has been fabricated successfully by Cr doped YAlO3 powder and silicone resin, and characterized for applications as the thermo-sensor material. Fluorescence thermometer system using fluorescence sensor sheet enables non-contact temperature measurement in extraordinary conditions. In this system, temperature measurement technique based on the temperature dependence of Photoluminescence...
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