NIST logo

Publication Citation: Calibration and Characterization of Trap Detector Filter Radiometers

NIST Authors in Bold

Author(s): David W. Allen; George P. Eppeldauer; Steven W. Brown; E A. Early; Bettye C. Johnson; Keith R. Lykke;
Title: Calibration and Characterization of Trap Detector Filter Radiometers
Published: November 01, 2003
Abstract: We describe the development of a mechanically simple, radiometrically stable transfer radiometer designed for both radiance and irradiance measurements. The filter radiometer consists of a six-element Si trap detector, a temperature stabilized filter wheel with up to 5 filters, and two precision apertures in a Gershun tube arrangement. With the Gershun tube installed, the instrument operates in radiance mode; with it removed, in irradiance mode. Two trap detector filter radiometers have been designed and built by the National Institute of Standards and Technology (NIST) for use in remote sensing applications. The filter radiometers have been characterized for optical and electrical performance, and have been calibrated for responsivity using both narrow-band, tunable-laser-illuminated and broad-band, lamp-illuminated integrating sphere sources. This paper describes the filter radiometer design, characterization, and deployments for several remote sensing projects.
Conference: Proceedings of SPIE--the International Society for Optical Engineering
Proceedings: Earth Observing Systems VIII | 8th | Earth Observing Systems VIII | SPIE
Volume: 5151
Dates: August 3-6, 2003
Keywords: radiometer;remote sensing;trap detector
Research Areas: