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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 47, Iss. 36 — Dec. 20, 2008
  • pp: 6753–6762

Design, calibration, and characterization of a field radiometer using light-emitting diodes as detectors

Jeffrey S. Czapla-Myers, Kurtis J. Thome, and Stuart F. Biggar  »View Author Affiliations


Applied Optics, Vol. 47, Issue 36, pp. 6753-6762 (2008)
http://dx.doi.org/10.1364/AO.47.006753


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Abstract

The Remote Sensing Group at the University of Arizona has developed multispectral ground-viewing radiometers that use light-emitting diodes as detectors. This work describes the optical design, electrical design, and laboratory calibration of a three-channel radiometer that operates in the visible and near-infrared region of the spectrum. The optical and electrical design of the radiometer is introduced, and then the calibration and characterization of the radiometer are described. Laboratory measurements include the spectral responsivity for each channel of the radiometer, the temperature dependence of the total responsivity for each channel, system linearity, field of view, and finally, the absolute radiometric calibration. A solar-radiation-based calibration is used to determine the absolute respon sivity.

© 2008 Optical Society of America

OCIS Codes
(230.0040) Optical devices : Detectors
(230.3670) Optical devices : Light-emitting diodes
(280.4788) Remote sensing and sensors : Optical sensing and sensors
(280.4991) Remote sensing and sensors : Passive remote sensing

ToC Category:
Remote Sensing and Sensors

History
Original Manuscript: June 27, 2008
Revised Manuscript: October 31, 2008
Manuscript Accepted: November 4, 2008
Published: December 12, 2008

Citation
Jeffrey S. Czapla-Myers, Kurtis J. Thome, and Stuart F. Biggar, "Design, calibration, and characterization of a field radiometer using light-emitting diodes as detectors," Appl. Opt. 47, 6753-6762 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-36-6753

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