Silicon-photodiode pyranometers: operational characteristics, historical experiences, and new calibration procedures

Small, low-cost, silicon-photodiode pyranometers are now widely used for solar irradiance measurements associated with solar thermal and photovoltaic power systems, as well as for agricultural applications. Without correction, the irradiance values indicated by these pyranometers may differ from the...

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Bibliographic Details
Published inConference Record of the Twenty Sixth IEEE Photovoltaic Specialists Conference - 1997 pp. 1285 - 1288
Main Authors King, D.L., Myers, D.R.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1997
Subjects
Calibration
Collaboration
Delay
Laboratories
Photodiodes
Photovoltaic systems
Renewable energy resources
Sea measurements
Silicon
Thermal factors
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Summary:Small, low-cost, silicon-photodiode pyranometers are now widely used for solar irradiance measurements associated with solar thermal and photovoltaic power systems, as well as for agricultural applications. Without correction, the irradiance values indicated by these pyranometers may differ from the "true" broadband solar irradiance by over 10%. This paper identifies the time-of-day dependent factors responsible for these systematic errors and describes new procedures that effectively compensate for the systematic influences. Application of the procedures should improve calibration methods and the accuracy of field measurements.
ISBN:9780780337671
0780337670
ISSN:0160-8371
DOI:10.1109/PVSC.1997.654323