Please use this identifier to cite or link to this item: http://hdl.handle.net/10174/32577

Title: System for simultaneously calibrating two or more solar radiation measuring pyranometers
Authors: Canhoto, Paulo
Issue Date: 7-Sep-2022
Publisher: European Patent Office
Citation: Paulo Canhoto (2022). System for simultaneously calibrating two or more solar radiation measuring pyranometers. European Patent Specification, EP 3 839 452 B1, 07.09.2022, Bulletin 2022/26. Inv.: Paulo Manuel Ferrão Canhoto. Prop.: Universidade de Évora.
Abstract: System for calibrate two or more pyranometers that measure solar radiation, comprising an electronic data processor configured for generating a mean calibration constant of the pyranometers, by carrying out the steps of: installing a reference pyrheliometer with known calibration constant RDIR placed proximal to the pyranometers to be calibrated; acquiring measurements of direct normal irradiance; recording the average values VDIR×CZA, VDIF(i) with i = 1, ..., NDIF and VGBL(j) with j = 1, ..., NGBL at a same and synchronized averaging rate; fit a linear function in the form Y = M×X + B to the data points defined by X(i,j)_k = VDIF(i)_k/VGBL(j)_k and Y(i,j)_k = VDIR×CZA_k/VGBL(j)_k with k = 1,...,NREC; calculating a calibration constants of the i-th pyranometer measuring diffuse irradiance through RDIF(i,j) = -RDIR/M and of the j-th pyranometer measuring the global irradiance (1b) through RGBL(j,i) = RDIR/B; calculating a mean calibration constant for the i-th pyranometer measuring diffuse irradiance through RDIF(i) = (1/NGBL)×sum_j=1^NGBL (RDIF(I, j)), and a mean calibration constant for the j-th pyranometer measuring global irradiance through RGBL(j) = (1/NDIF)×sum_i=1^NDIF (RGBL(j,i)).
URI: https://worldwide.espacenet.com/patent/search/family/069157566/publication/EP3839452B1?q=EP3839452
http://hdl.handle.net/10174/32577
Type: patent
Appears in Collections:ICT - Patentes

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