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Proceedings Paper

Infrared radiance comparator
Author(s): Alain Janest; Georges Negro; Marcel Fanjeaux
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Paper 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.

Paper Details

Date Published: 15 November 1993
PDF: 7 pages
Proc. SPIE 1938, Recent Advances in Sensors, Radiometric Calibration, and Processing of Remotely Sensed Data, (15 November 1993); doi: 10.1117/12.161541
Show Author Affiliations
Alain Janest, Bertin & Cie (France)
Georges Negro, INM-CNAM (France)
Marcel Fanjeaux, INM-CNAM (France)


Published in SPIE Proceedings Vol. 1938:
Recent Advances in Sensors, Radiometric Calibration, and Processing of Remotely Sensed Data
Pat S. Chavez; Robert A. Schowengerdt, Editor(s)

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