Low Cost UV Measurer
Abstract
: Information on the ultraviolet solar irradiation (UV) in Brazil and throughout the world is scarce mainly due to the high costs of equipment and sensors, besides the operational costs in the implementation of a measurement station. The knowledge of the UV irradiation levels for a given region is of great importance, once this radiation affects not only the living beings but also the external usage material. This work aims to introduce a microcontrolled low cost ultraviolet measurer , capable of storing information on the global radiation (G) in minute scale and by means of a statistical correlation (UV/G), calculate the UV (A+B) radiation. Preliminary tests have shown good statistical performance when compared to data collected from a second set of sensors coupled with commercial datalogger (CR1000). In minute scale, the UV (A+B) estimate by the UV measurer, has shown RMSE% of 13.0%, and 6.90% in hourly scale.