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Radiometric Traceability for Pyranometer Calibration Based on High Flux LEDs and Reference Detector

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Title Radiometric Traceability for Pyranometer Calibration Based on High Flux LEDs and Reference Detector
 
Creator Karmalawi, Abdallah M
 
Subject Pyranometer
Radiometer
WRR
Radiometric traceability
 
Description 247-253
This article aims to establish a new system for pyranometer calibration traceable to the radiometric chain. Different
spectrum high flux LEDs have been used as tunable irradiance sources. The calibration procedure, uncertainty budget, and
traceability chain of the solar irradiance measurements are presented. Additionally, the results were evaluated using a reference
pyranometer, calibrated traceable to radiometric traceability and World Radiometric Reference (WRR).
The uncertainty values are also estimated to be around 1.19 % (k = 2) for LEDs-based pyranometer-pyranometer
calibration (WRR traceability), and about 0.68 % (k = 2) for reference standard radiometer based (Radiometric traceability).
The deviation between the reference pyranometer and the pyranometer under test was about 0.8% using LED at 655nm for
irradiance of 500 W/m2.The sensitivity results have been evaluated by reference standard pyranometer traceable to WRR using
a xenon lamp as a solar source, with a deviation of about 1 %.
 
Date 2023-05-25T07:16:33Z
2023-05-25T07:16:33Z
2023-05
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscpr.res.in/handle/123456789/61937
https://doi.org/10.56042/ijpap.v61i4.68963
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJPAP Vol.61(04) [April 2023]