Multiwavelength sunphotometer for high-accuracy measurements of atmospheric extinction and environmental monitoring

Jaroslaw Bysiek; Waldemar Pskiet; Miroslaw Rataj

doi:10.1117/12.155666

24 September 1993 Multiwavelength sunphotometer for high-accuracy measurements of atmospheric extinction and environmental monitoring

Jaroslaw Bysiek, Waldemar Pskiet, Miroslaw Rataj

Author Affiliations +

Proceedings Volume 1711, High-Performance Optical Spectrometry; (1993) https://doi.org/10.1117/12.155666
Event: High Performance Optical Spectrometry, 1992, Warsaw, Poland

Abstract

The design of a newly constructed high performance portable Vis-NIR multiple wavelength sunphotometer is presented. The device measures the incoming flux of direct solar radiation within narrow spectral intervals set by bandpass interference filters. These intervals correspond to the main windows of the visible and near-infrared attenuation spectrum of the atmosphere and to the selected water vapor absorption bands. The instrument's optical features and performance are described. It is explained why the most important parts of the device should be carefully stabilized thermally (detector and amplifier within filters and signal processing unit within to avoid biasing of the solar signal. The overall accuracy of the photometer's output is derived to be better than 0.1% to match requirements in the NIR.

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Jaroslaw Bysiek, Waldemar Pskiet, and Miroslaw Rataj "Multiwavelength sunphotometer for high-accuracy measurements of atmospheric extinction and environmental monitoring", Proc. SPIE 1711, High-Performance Optical Spectrometry, (24 September 1993); https://doi.org/10.1117/12.155666

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