The Modification and Application of a Two-Colour Disappearing-Filament Pyrometer to Perform Flame Temperature Measurements.
DEFENCE RESEARCH ESTABLISHMENT OTTAWA (ONTARIO)
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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 manufacturers 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.
- Combustion and Ignition