Glass transmitted solar irradiances on horizontal and sun-normal planes evaluated with a smartphone camera

Dawes, Adrian J. and Igoe, Damien P. and Rummenie, Katherine.J. and Parisi, Alfio V. (2020) Glass transmitted solar irradiances on horizontal and sun-normal planes evaluated with a smartphone camera. Measurement, 153 (Article 107410). pp. 1-7. ISSN 0263-2241

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Abstract

This paper characterised and evaluated the ability of a smartphone camera to measure ultraviolet radiation (UVR) through various types and thicknesses of glass. Image sensor responses from a smartphone with UVA transmitting filters were measurably stronger in the red colour channel than the blue, with the green colour channel responding weakly. Strong correlations of up to R2= 0.96 have been determined from calibration of the red and blue channel image responses against measured UVA irradiances for data obtained from both the horizontal plane and the sun-normal plane. For the validation data of the red channel and the blue channel respectively, the mean absolute error was 13.7% and 17.4% for the horizontal plane and 3.8% to 5.6% for the sun-normal plane. This research has concluded that it is possible to determine UVA irradiances through glass, of different thicknesses, using a smartphone camera with high degree of accuracy.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Sciences (6 Sept 2019 -)
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Sciences (6 Sept 2019 -)
Date Deposited: 30 Jan 2020 04:46
Last Modified: 07 May 2020 04:40
Uncontrolled Keywords: UVA; glass; skin cancer; solar; irradiance
Fields of Research (2008): 02 Physical Sciences > 0299 Other Physical Sciences > 029999 Physical Sciences not elsewhere classified
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970102 Expanding Knowledge in the Physical Sciences
Identification Number or DOI: 10.1016/j.measurement.2019.107410
URI: http://eprints.usq.edu.au/id/eprint/37618

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