Unexplored Indoors method for pyranometers calibration traceable to SI

7th International Congress of Engineering Physics

物理学;工业技术

Castillo-Matadamas, H.A.^1 ; Molina-Vazquez, J.C.^1 ; Quintero-Torres, R.^2

Centro Nacional de Metrología, Dirección de Óptica y Radiometría, El Marques Querétaro

C.P. 76246, Mexico^1

Centro de Física Aplicada y Tecnología Avanzada, UNAM Campus Juriquilla, Boulevard Juriquilla 3001, Juriquilla Querétaro

76230, Mexico^2

关键词: Calibration method;    Coverage factors;    Electrically calibrated pyroelectric detectors;    Measurement uncertainty;    Pyranometers;    Reference standard;    Sensitivity coefficient;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/582/1/012051/pdf
DOI  :  10.1088/1742-6596/582/1/012051

学科分类：工业工程学

来源: IOP

【 摘 要 】

A method to calibrate pyranometers with direct traceability to the International System of Units (SI) is presented, the method use an electrically calibrated pyroelectric detector (ECPR) as standard and offers numerous advantages over outdoors conventional calibration methods, such as reducing the uncertainty from the reference standard and the final uncertainty of the sensitivity coefficient of the calibrated pyranometer; the measurement uncertainty achieved with this method at normal irradiance is 2.1% for a coverage factor k 2 and could be reduce if one reduces the uncertainty level of the reference standard.