Solar radiation sensor (Pyranometer)
The various radiation fluxes to and from the earth's surface are among the most important variables for the earth's thermal balance. Radiation measurements are mainly done for:
Solar radiation, as an endless source of energy is proven to be widely applied, due to its abundance and ease of use (e.g. evaporation estimations). Pyranometers are the scientific instruments for the measuring of solar radiation. They consist of a photodiode detector, which creates a voltage output that is proportional to the incoming radiation. Also due to the design of the diffuser, its sensitivity is proportional to the cosine of the angle of incidence of the incoming radiation, allowing for accurate and consistent measurements.
Net radiation sensor (Net radiometer)
The network is equipped with sensors for measuring net radiation, which is the balance between incoming and outgoing radiation under outdoor conditions.
The specific instrument (net radiometer) is based on a thermopile sensor. The voltage is proportional to the net radiation.