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Development of filter radiometer based high accurate calibration facility for solar UV meters

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Abstract:

A reference filter radiometer based measurement system was established in the laboratory to calibrate solar UV radiometers. Filter radiometer was constructed from three-element silicon photodiode based reflection type trap detector, band-pass filters and precision aperture in a temperature-controlled enclosure. Spectral responsivity of trap detector was determined as traceable to the cryogenic radiometer and electrically calibrated pyroelectric detector. Relative uncertainties in the filter radiometer's responsivities at six wavelengths between 291 nm and 434 nm were calculated. In order to engage this radiometer in various types of implementations, filter(s) having previously known spectral transmittance was used in the radiometer housing. Calibration of solar UV meters can be achived accurately by using the developed system.

Document Type: Research Article

DOI: https://doi.org/10.1078/0030-4026-00533

Affiliations: National Metrology Institute of Turkey (UME), Gebze, 41470, Kocaeli, Turkey

Publication date: 2004-12-01

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