Difference between revisions of "Irradiance"

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[[Category:Alphabetical Index]]
[[Category:Alphabetical Index]]
[[Category:IALA Dictionary 1970-89 Edition]]
[[Category:IALA Dictionary 1970-89 Edition]]
[[Category:IALA Dictionary 2023 Revision]]

Latest revision as of 03:32, 3 February 2024

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Irradiance (at a point of a surface)

The quotient of the radiant flux (dOe) incident on an element of the surface containing the point, by the area (dA) of that element.

Symbol Ee

Unit watt per square metre (W/m2)


Reference: C.I.E. (modified)


Note: If the radiant flux Fe may be considered uniformly distributed over a finite plane surface of area A, the irradiance on this surface is given by ?? where Fe is the total radiant flux incident on the surface.




Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)