Pyranometers

The pyranometer is a precision meteorological instrument, which quantifies the amount of incident solar radiation on Earth, in KW or W / M2.

Collect the radiation in a 180º field. It measures three types of radiation, total hemispherical, diffuse, and direct. This radiation is collected by a thermocouple sensor, after it has passed through two transparent domes.
A pyranometer is made up of a thermoelectric cell contained in a housing with two glass hemispheres. The thermoelectric cell is made up of a series of horizontally placed thermocouples, the ends of which are welded with vertical copper bars attached to a solid brass plate. The set is painted with a black varnish, to absorb radiation. The heat flow caused by the radiation is transmitted to the thermopile, generating an electrical voltage proportional to the temperature difference between the metals in the thermocouples.