Definitions for "Pyranometer"
An instrument for measuring either the diffuse or the total global solar radiation.
An instrument with a hemispherical field of view, used for measuring total or global solar radiation, specifically global horizontal radiation; a pyranometer with a shadow band or shading disk blocking the direct beam measures the diffuse sky radiation, as is illustrated in the picture below. A picture of the Eppley PSP pyranometer is included in the PSP definition above.
Instrument which measures diffuse and direct solar radiation.