Zambia energy storage cabinet fluorescence temperature measurement

What is fluorescent thermometry?

Fluorescent thermometry involves the use of a fluorescent dye, whose fluorescence intensity is a strong function of temperature, to infer the temperature of a fluid or surface. The dye is dissolved in a fluid of interest, or coated on a surface, and is excited to fluoresce by incident light.

Which fluorescence ratio is used for temperature measurements?

Two fluorescence ratios, namely band 1 to band 3 and band 2 to band 3 are used for temperature measurements. As shown in Fig. 7 d, the first band is selected to be sensitive to the re-absorption of the fluorescence and lowly-sensitive to temperature.

What is lifetime Fluorescence imaging microscopy (FLIM)?

Unlike the other LIF measurement techniques that utilize the relative intensity for temperature demonstration, lifetime fluorescence imaging microscopy (FLIM) is an absolute measurement method for temperature mapping with applications in biology and fluid mechanics .

Can fluorescence spec- troscopy monitor resin temperature during processing?

In previous publications, we described a technique based on fluorescence spec- troscopy to monitor resin temperature during processing. The method consists of using optical fiber sensors to monitor fluorescence from a fluorescent dye that has been doped into the processed resin.

What is temperature sensitivity in fluorescence?

For temperature measurement by single-dye fluorescence, the temperature sensitivity of a dye, specifically its quantum efficiency, effectively defines the temperature resolution of the measurement itself.

How do you calculate fluorescence lifetime?

The fluorescence lifetime, τ, is an inherent property that is independent from the laser intensity fluctuations and depends on the fluorescent molecules temperature given by: (11) τ = A exp (E a R T) where E a is the activation energy, R the global gas constant, and A is a coefficient.