27 research outputs found
Development of a stable ultraviolet source and techniques for accurate radiometry Status report, 1 Oct. - 31 Dec. 1965
Stable ultraviolet source and accurate radiometric technique
Development of a stable ultraviolet source and techniques for accurate radiometry Annual summary report, 1 Jan. - 31 Dec. 1965
Drawings and characteristics of small portable model of high pressure plasma arc source for stable accurate ultraviolet radiometr
Development of a stable ultraviolet source and techniques for accurate radiometry annual summary report, jan. 1 - dec. 31, 1964
Argon arc stable source of high ultraviolet radiation and high accuracy spectroradiometer for calibration of spectral radiation standard
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National Bureau of Standards Reports
Report reviewing the theoretical methods of optical pyrometry and the application of these methods at the National Bureau of Standards in realizing, maintaining and distributing the International Practical Temperature Scale above 1063 ºC is presented. In the theoretical presentation, the concepts of effective and mean effective wavelengths are introduced, and various equations relating these parameters to each other and other physical quantities are derived. The methods presentation discusses important features of precision visual optical pyrometers, experimental procedures, and results of primary and secondary calibrations of optical pyrometers