15 November 1993 Infrared radiance comparator
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Abstract
The Infrared Radiance Comparator was designed for the French setting of the International Scale Temperatures (IST 90). This apparatus is devoted to high accuracy calibration of radiative sources (black bodies, tungsten ribbon lamps) for the 250 K - 2500 K temperature scale. The basic concept used for this instrument minimizes the systematic errors well known in this metrology field by measuring the critical parameters (effective wavelength of internal interference filter, linearity defects of the analog signal of the detector, polarization ratio of measured radiatives sources). Some secondary devices are used for the in-situ measurements of these critical parameters.
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Alain Janest, Alain Janest, Georges Negro, Georges Negro, Marcel Fanjeaux, Marcel Fanjeaux, } "Infrared radiance comparator", Proc. SPIE 1938, Recent Advances in Sensors, Radiometric Calibration, and Processing of Remotely Sensed Data, (15 November 1993); doi: 10.1117/12.161541; https://doi.org/10.1117/12.161541
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