scholarly journals Spectral irradiance measurement of light sources used for the weatherability test of polymer materials.

1985 ◽  
Vol 58 (1) ◽  
pp. 33-38
Author(s):  
Yoiti Minematu
Keyword(s):  
Spectral Irradiance ◽  
Polymer Materials ◽  
Light Sources ◽  
Irradiance Measurement

Two procedures for the estimation of the uncertainty of spectral irradiance measurement for UV source calibration

Metrologia ◽  
2007 ◽  
Vol 44 (2) ◽  
pp. 152-160 ◽  
Author(s):  
A-F Obaton ◽  
J Lebenberg ◽  
N Fischer ◽  
S Guimier ◽  
J Dubard
Keyword(s):  
Spectral Irradiance ◽  
Irradiance Measurement

scholarly journals A Correction Method for Measuring Spectral Irradiance of Light Sources Based on Differential Quadrature Method

2015 ◽  
Vol 2015 ◽  
pp. 1-6
Author(s):  
Yanfei Wang ◽  
Caihong Dai ◽  
Zhifeng Wu ◽  
Binhua Chen
Keyword(s):  
Experimental Validation ◽  
Differential Quadrature Method ◽  
Correction Method ◽  
Differential Quadrature ◽  
Spectral Irradiance ◽  
Light Sources ◽  
Quadrature Method ◽  
Spectrum Measurement ◽  
True Value ◽  
Narrow Bandwidth

A novel correction method was demonstrated for measuring spectral irradiance of light sources with a narrow bandwidth. Using the correction method based on differential quadrature method, an estimate of the true value was achieved with measured values of seven adjacent points. The formula of this correction method was derived. Numerical simulations and experimental validation of this correction method were also performed, respectively. This correction method could be used in radiometry, photometry, colorimetry, and other spectrometry fields, especially in the spectrum measurement of LED lamp.

Upgradation of a spectral irradiance measurement facility at National Physical Laboratory, India

MAPAN ◽  
2010 ◽  
Vol 25 (1) ◽  
pp. 21-28
Author(s):  
Parag Sharma ◽  
V. K. Jaiswal ◽  
Sudama ◽  
Ranjana Mehrotra ◽  
H. C. Kandpal
Keyword(s):  
National Physical Laboratory ◽  
Spectral Irradiance ◽  
Measurement Facility ◽  
Irradiance Measurement ◽  
Physical Laboratory

scholarly journals Spectral mismatch and its effect on artificial solar light source under standard test conditions

2021 ◽  
Vol 292 ◽  
pp. 01021
Author(s):  
Gao Sheng ◽  
Lu Xiaodong ◽  
Lun Shuxian
Keyword(s):  
Amorphous Silicon ◽  
Spectral Response ◽  
Solar Spectrum ◽  
Standard Test ◽  
Spectral Irradiance ◽  
Solar Light ◽  
Light Sources ◽  
Test Results ◽  
Test Conditions ◽  
The Difference

Under standard test conditions, the spectral irradiance of artificial solar light sources and the spectral response of photovoltaic devices are important factors that affect the accuracy of device test results. This paper takes the standard solar spectrum AM1.5 as a reference, and calculates the difference between the four commonly used artificial solar light sources (Arc Lamp, Q-Flash, Q-Flash w and ELH) and the standard solar spectrum AM1.5 from the perspective of spectral mismatch. The spectral mismatch factor and the output parameters of the amorphous silicon cell under the irradiation of these light sources. Calculations show that the spectral mismatch factor of Arc Lamp is only 1.005, which matches the standard solar spectrum AM1.5 best. Due to the effect of spectral mismatch, the output parameters of amorphous silicon cells will change significantly after different artificial light sources irradiate them.

scholarly journals SI Traceable Solar Spectral Irradiance Measurement Based on a Quantum Benchmark: A Prototype Design

2020 ◽  
Vol 12 (9) ◽  
pp. 1454
Author(s):  
Xiaobing Zheng ◽  
Maopeng Xia ◽  
Wenchao Zhai ◽  
Youbo Hu ◽  
Jianjun Li ◽  
...  
Keyword(s):  
Uncertainty Budget ◽  
Spectral Irradiance ◽  
Nonlinear Crystals ◽  
Solar Spectral Irradiance ◽  
Irradiance Measurement ◽  
Parametric Down Conversion ◽  
Optical Radiometry ◽  
Quantum Optical ◽  
Down Conversion ◽  
Prototype Design

We propose a space benchmark sensor with onboard SI (Système International) traceability by means of quantum optical radiometry. Correlated photon pairs generated by spontaneous parametric down-conversion (SPDC) in nonlinear crystals are used to calibrate the absolute responsivity of a solar observing radiometer. The calibration is systematic, insensitive to degradation and independent of external radiometric standards. Solar spectral irradiance at 380–2500 nm is traceable to the photon rate and Planck’s constant with an expected uncertainty of about 0.35%. The principle of SPDC calibration and a prototype design of the solar radiometer are introduced. The uncertainty budget is analyzed in consideration of errors arising from calibration and observation modes.

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