The Modification and Application of a Two-Colour Disappearing-Filament Pyrometer to Perform Flame Temperature Measurements.

Abstract

An optical pyrometer of the disappearing-filament type was modified to allow brightness temperature measurements to be made in the green region of the spectrum. The modified instrument was re-calibrated at a wavelength of 547 nm. The manufacturer's calibration of a second pyrometer operating at lambda = 645 nm was verified. Sources of error in the calibrations are discussed. The theory and limitations of two-colour pyrometry as a means of obtaining true source temperatures are presented. Keywords: Micro optical pyrometer; Two color pyrometry; Brightness temperatures; Flame temperatures; Flame emissivity; and Canada.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1986
Accession Number
ADA164456

Entities

People

  • Frank D. Findlay

Organizations

  • Defence Research and Development Canada

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Abstracts
  • Accuracy
  • Agreements
  • Brightness
  • Calibration
  • Classification
  • Conversion
  • Diagrams
  • Equations
  • Measurement
  • National Security
  • Optical Pyrometers
  • Precision
  • Pyrometers
  • Schematic Diagrams
  • Security
  • Spectra

Fields of Study

  • Physics

Readers

  • Geodesy
  • Thermal Physics or Thermal Science.
  • Vision Science/Vision Psychology/Cognitive Neuroscience.