Design and Development of an Ultraviolet All-Sky Imaging System
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All-sky cameraUV imagingSensorValidationCOTS
Mathanlal, T.; Martin-Torres, J. Design and Development of an Ultraviolet All-Sky Imaging System. Sensors 2023, 23, 7343. [https://doi.org/10.3390/s23177343]
SponsorshipUK Space Agency projects ST/W00190X/1, ST/V00610X/1
All-sky cameras capture a panoramic view of the full sky from horizon to horizon to generate a wide-angle image of the observable sky. State-of-the-art all-sky imagers are limited to imaging in the visible and infrared spectrum and cannot image in the UV spectrum. This article describes the development of an all-sky imaging system capable of capturing 130 & DEG; wide-angle sky images from horizon to horizon in the UV-AB spectrum. The design of the UV all-sky imaging system is based on low-cost, accessible, and scalable components to develop multiple images that can be deployed over a wider geographical area. The spectral response of the camera system has been validated in the UV spectrum (280-420 nm) using a monochromatic UV beam with an average power output of 22 nW. UV all-sky imaging systems complement existing infrared and visible all-sky cameras. They have wide applications in astronomy, meteorology, atmospheric science, vulcanology, meteors and auroral monitoring, and the defence sector.