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Verlagsausgabe
DOI: 10.5445/IR/1000039067
Veröffentlicht am 24.05.2018
Originalveröffentlichung
DOI: 10.5194/amt-4-47-2011
Scopus
Zitationen: 29
Web of Science
Zitationen: 30

Camtracker: a new camera controlled high precision solar tracker system for FTIR-spectrometers

Gisi, M.; Hase, F.; Dohe, S.; Blumenstock, T.

Abstract:
A new system to very precisely couple radiation of a moving source into a Fourier Transform Infrared (FTIR) Spectrometer is presented. The Camtracker consists of a homemade altazimuthal solar tracker, a digital camera and a homemade program to process the camera data and to control the motion of the tracker. The key idea is to evaluate the image of the radiation source on the entrance field stop of the spectrometer. We prove that the system reaches tracking accuracies of about 10 arc s for a ground-based solar absorption FTIR spectrometer, which is significantly better than current solar trackers. Moreover, due to the incorporation of a camera, the new system allows to document residual pointing errors and to point onto the solar disk center even in case of variable intensity distributions across the source due to cirrus or haze.


Zugehörige Institution(en) am KIT Fakultät für Physik (PHYSIK)
Institut für Meteorologie und Klimaforschung - Atmosphärische Spurenstoffe und Fernerkundung (IMK-ASF)
Institut für Meteorologie und Klimaforschung (IMK)
Publikationstyp Zeitschriftenaufsatz
Jahr 2011
Sprache Englisch
Identifikator ISSN: 1867-1381, 1867-8548
URN: urn:nbn:de:swb:90-390675
KITopen ID: 1000039067
HGF-Programm 12.04.04; LK 01
Erschienen in Atmospheric measurement techniques
Band 4
Heft 1
Seiten 47-54
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