title: Spectroradiometric pyrometry of shock-heated gases by infrared emission and absorption measurements.
abstract: A spectroradiometric pyrometer was developed to measure temperatures of shock-heated gases with time resolution of about 10 microsec. Gas temperatures in shock-heated CO(2)-N(2) mixtures and in self-sustaining detonations were determined by simultaneously measuring infrared spectral radiance and absorptance at selected wavelengths in CO(2) and H(2)O band spectra. By Kirchhoff's law, the ratio (radiance/absorptance) equals the Planck blackbody radiance, from which the temperature is easily found. The measured temperatures agreed with values calculated from the measured shock velocities.
authors.affiliation: The Warner & Swasey Company, Control Instrument Division, Flushing, New York, USA.
authors.forename: G J
authors.initials: GJ
authors.lastname: Penzias
authors.forename: S A
authors.initials: SA
authors.lastname: Dolin
authors.forename: H A
authors.initials: HA
authors.lastname: Kruegle