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
|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
|