Spectroscopic temperature measurement

Details Spectroscopic temperature measurement Spectroscopic temperature measurement

1976-08-31

1977-11-08

Sacher, Paul A.

Optics: measuring and testing

Optical pyrometers

Plural color responsive

356 75, G01J 560, G01J 344

Patent

active

040573494

ABSTRACT:
A method and apparatus for determining the temperature of gaseous materials are provided. Light produced by scattering in a gaseous material and having spectral components periodic in frequency is collected, collimated and transmitted by a light conditioning means to an interferometric means. The interferometric means selectively separates periodic spectra from the light and transmits the spectra in the form of a detectable signal containing first and second branches of the spectra. Means are provided for measuring the intensities of the branches and detecting and recovering the intensity ratio thereof, which is correlated with the temperature of the gaseous material.

REFERENCES:
patent: 3853404 (1974-12-01), Barrett
patent: 3909132 (1975-09-01), Barrett

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