| Zugriffsnummer | 39194 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | Nonlinearity characterization of array spectroradiometers for the solar UV measurements |
| Autor(in); Institution |
Pulli, Tomi; Metrology Research Institute, Aalto University School of Electrical Engineering, Espoo, FINLAND
Nevas, Saulius; 4.1, Photometrie und angewandte Radiometrie, PTB-Braunschweig
El Gawhary, Omar; VSL Dutch Metrology Institute, Delft, THE NETHERLANDS
Van den Berg, Steven; VSL Dutch Metrology Institute, Delft, THE NETHERLANDS
Askola, Janne; Metrology Research Institute, Aalto University School of Electrical Engineering, Espoo, FINLAND
Kärhä, Petri; Metrology Research Institute, Aalto University School of Electrical Engineering, Espoo, FINLAND
Manoocheri, Farshid; Metrology Research Institute, Aalto University School of Electrical Engineering, Espoo, FINLAND
Ikonen, Erkki; Metrology Research Institute, Aalto University School of Electrical Engineering, Espoo, FINLAND
|
| Quelle/Jahr | Applied Optics: 56 (2017), 11, 3077 - 3086 |
| ISSN | 1559-128X (PRINT) ; 2155-3165 (ONLINE) |
| DOI | |
| Verlag | Washington, DC: OSA |
| Klassifikationscode | OCIS: 120.6200 ; OCIS: 120.5630 ; OCIS: 040.1240 ; OCIS: 040.1520 ; OCIS: 040.7190 |
| Zusammenfassung | Array spectroradiometers are attractive alternatives to scanning spectroradiometers in solar ultraviolet measurements. However, the measurement of solar spectral irradiance imposes stringent requirements for the linearity of the instruments. In this article, two array spectroradiometers were characterized for nonlinearity. Significant nonlinearities, in excess of 10%, as a function of analog-to-digital converter counts were discovered. Additional nonlinearities as a function of integration time were observed at very long integration times. No clear residual nonlinearity as a function of spectral irradiance was witnessed despite the characterization spanning four orders of magnitude of spectral irradiance. The characterizations were carried out with three measurement setups that are briefly compared. |
Zitierung
Pulli, T., Nevas, S., El Gawhary, O., Van den Berg, S., Askola, J., Kärhä, P., Manoocheri, F., & Ikonen, E. (2017). Nonlinearity characterization of array spectroradiometers for the solar UV measurements. Applied Optics, 56(11), 3077–3086. https://doi.org/10.1364/ao.56.003077