Four-band fiber optic radiometry for true temperature measurements during an exothermal process

Vered Scharf*, Abraham Katzir

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Four-band fiber optic radiometry is a method for noncontact temperature measurement of a sample with an unknown emissivity, assuming the emissivity is uniform in all four spectral bands. The method corrects the temperature calculation automatically, according to the emissivity calculation, during continuous measurements on the sample. This method may be particularly useful in determining the temperature of a material that undergoes a transition in which both temperature and emissivity change, such as phase transitions or exothermic processes. We report a radiometric four-band measurement in the mid-infrared region, for determining the true temperature of an epoxy resin during its curing.

Original languageEnglish
Pages (from-to)1502-1506
Number of pages5
JournalOptical Engineering
Volume41
Issue number7
DOIs
StatePublished - Jul 2002

Keywords

  • Epoxy
  • Fiber optics
  • Infrared
  • Nondestructive testing
  • Radiometry
  • Thermometry

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