Determination of temperature in glass with a fluorescence method

C. L. Shepard, B. D. Cannon, M. A. Khaleel

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We have developed a method for measurement of temperature in glass products with the following features: (1) Non-contacting, (2) real time, and (3) through-thickness. The method is based on fluorescence emission. Many glass products include Fe2O3 as an additive in various amounts. Ferric (Fe3+) and ferrous (Fe2+) ions absorb light in the ultraviolet and infrared parts of the spectrum. Absorption of light by iron ions in glass results in a predictable fluorescence emission. The emission in turn depends on the glass temperature, and this dependence is the basis for our method of measuring temperature. We have measured the fluorescence emission lifetimes in several commercial automotive glass samples over a temperature range from 25°C to 550°C (about 300-825 K). Imaging the fluorescence emission from glass samples onto a segmented photomultiplier tube provided spatially resolved measurements. A simple model that relates the temperature to the fluorescence lifetime has been developed. Published by Elsevier Science Ltd.

Original languageEnglish
Pages (from-to)4027-4034
Number of pages8
JournalInternational Journal of Heat and Mass Transfer
Volume44
Issue number21
DOIs
Publication statusPublished - 4 Sep 2001
Externally publishedYes

Fingerprint

Fluorescence
Glass
fluorescence
glass
Temperature
temperature
Ions
life (durability)
light ions
Photomultipliers
photomultiplier tubes
products
Iron
Infrared radiation
Imaging techniques
iron
ions

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Energy(all)
  • Mechanical Engineering

Cite this

Determination of temperature in glass with a fluorescence method. / Shepard, C. L.; Cannon, B. D.; Khaleel, M. A.

In: International Journal of Heat and Mass Transfer, Vol. 44, No. 21, 04.09.2001, p. 4027-4034.

Research output: Contribution to journalArticle

Shepard, C. L. ; Cannon, B. D. ; Khaleel, M. A. / Determination of temperature in glass with a fluorescence method. In: International Journal of Heat and Mass Transfer. 2001 ; Vol. 44, No. 21. pp. 4027-4034.
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