Topical Terminology > Absorption Coefficient
Absorption Coefficient
For Absorption Coefficient we have terms and definitions in 3 topics. The topics are Audio Technology, Climate and Electric Power.
Absorption Coefficient (Audio Technology) 
The sound absorption coefficient defines the fraction of sound energy absorbed by, for example, one reflection from a wall. Energy is proportional to the square of sound pressure, so for an absorption coefficient of 0.2, 20% percent of the energy is absorbed, reducing the sound pressure by 10.6%.
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Absorption Coefficient (Climate)
A measure of the amount of radiant energy, incident normal to a planar surface, that is absorbed per unit distance or unit mass of a substance.
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Absorption Coefficient (Electric Power)
The factor by which photons are absorbed as they travel a unit distance through a material.
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