Embedded system upgrade based on Raspberry Pi computer for a 23/31 GHz dual-channel water vapor radiometer

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Authors

Ferrusca, Daniel
Cuazoson, Jetzael
Contreras, Jesus
Hiriart, David
Ibarra, Eduardo
Kurtz, Stanley
Stander, Tinus
Velazquez, Miguel

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Society of Photo-optical Instrumentation Engineers

Abstract

We present the refurbishment of a 23.8/31.5 GHz tipping radiometer (WVR-III) to characterize atmospheric opacity for astronomical sites. The mid-life upgrade will bring new life to the 20-year-old WVR-III with most control functions now embedded on a Raspberry PI 3B+ (RPi-3B+). The radiometer will be installed alongside the 225 GHz radiometer at the Large Millimeter Telescope site in Mexico and in 2021 it will be taken to the Hartebeesthoek Radio Astronomy Observatory in South Africa. Later, it will be deployed to Mt Gamsberg, Namibia to perform PWV site surveying for potential future radio astronomy telescopes. This paper describes the new control and data acquisition sub-systems that are controlled by the RPi-3B+.

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Keywords

Opacity, Radiometer, PWV, Raspberry, Embedded system, Large millimeter telescope

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Citation

Ferrusca, D., Cuazoson, J., Contrerasa, J. et al. 2020, 'Embedded system upgrade based on raspberry Pi computer for a 23/31 GHz dual-channel water vapor radiometer', Proceedings of SPIE - The International Society for Optical Engineering, vol. VIII, art. 1144586, pp. 1-11.