Glass transmitted solar irradiances on horizontal and sun-normal planes evaluated with a smartphone camera
Article
Article Title | Glass transmitted solar irradiances on horizontal and sun-normal planes evaluated with a smartphone camera |
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ERA Journal ID | 650 |
Article Category | Article |
Authors | Dawes, Adrian J. (Author), Igoe, Damien P. (Author), Rummenie, Katherine.J. (Author) and Parisi, Alfio V. (Author) |
Journal Title | Measurement |
Journal Citation | 153, pp. 1-7 |
Article Number | 107410 |
Number of Pages | 7 |
Year | 2020 |
Publisher | Elsevier |
Place of Publication | Netherlands |
ISSN | 0263-2241 |
1873-412X | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.measurement.2019.107410 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0263224119312771 |
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. |
Keywords | UVA; glass; skin cancer; solar; irradiance |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 519999. Other physical sciences not elsewhere classified |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | Centre for Applied Climate Sciences |
Faculty of Health, Engineering and Sciences | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q5834/glass-transmitted-solar-irradiances-on-horizontal-and-sun-normal-planes-evaluated-with-a-smartphone-camera
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