actinometer การใช้

He named seven moons of Saturn and four moons of Uranus, invented the cyanotype and actinometer, and wrote extensively on topics including meteorology, physical geography and the telescope.
A pyranometer is a type of actinometer used to measure broadband solar irradiance on a planar surface and is a sensor that is designed to measure the solar radiation flux density ( in watts per metre square ) from a field of view of 180 degrees.
A "'pyranometer "'is a type of actinometer used for measuring solar irradiance on a planar surface and it is designed to measure the solar radiation flux density ( W / m 2 ) from the hemisphere above within a wavelength range 0.3 ?m to 3 ?m.