Template:Radiometry coefficients
Appearance
Quantity | SI units | Notes | |
---|---|---|---|
Name | Sym. | ||
Hemispherical emissivity | ε | — | Radiant exitance of a surface, divided by that of a black body at the same temperature as that surface. |
Spectral hemispherical emissivity | εν ελ |
— | Spectral exitance of a surface, divided by that of a black body at the same temperature as that surface. |
Directional emissivity | εΩ | — | Radiance emitted by a surface, divided by that emitted by a black body at the same temperature as that surface. |
Spectral directional emissivity | εΩ,ν εΩ,λ |
— | Spectral radiance emitted by a surface, divided by that of a black body at the same temperature as that surface. |
Hemispherical absorptance | A | — | Radiant flux absorbed by a surface, divided by that received by that surface. This should not be confused with "absorbance". |
Spectral hemispherical absorptance | Aν Aλ |
— | Spectral flux absorbed by a surface, divided by that received by that surface. This should not be confused with "spectral absorbance". |
Directional absorptance | AΩ | — | Radiance absorbed by a surface, divided by the radiance incident onto that surface. This should not be confused with "absorbance". |
Spectral directional absorptance | AΩ,ν AΩ,λ |
— | Spectral radiance absorbed by a surface, divided by the spectral radiance incident onto that surface. This should not be confused with "spectral absorbance". |
Hemispherical reflectance | R | — | Radiant flux reflected by a surface, divided by that received by that surface. |
Spectral hemispherical reflectance | Rν Rλ |
— | Spectral flux reflected by a surface, divided by that received by that surface. |
Directional reflectance | RΩ | — | Radiance reflected by a surface, divided by that received by that surface. |
Spectral directional reflectance | RΩ,ν RΩ,λ |
— | Spectral radiance reflected by a surface, divided by that received by that surface. |
Hemispherical transmittance | T | — | Radiant flux transmitted by a surface, divided by that received by that surface. |
Spectral hemispherical transmittance | Tν Tλ |
— | Spectral flux transmitted by a surface, divided by that received by that surface. |
Directional transmittance | TΩ | — | Radiance transmitted by a surface, divided by that received by that surface. |
Spectral directional transmittance | TΩ,ν TΩ,λ |
— | Spectral radiance transmitted by a surface, divided by that received by that surface. |
Hemispherical attenuation coefficient | μ | m−1 | Radiant flux absorbed and scattered by a volume per unit length, divided by that received by that volume. |
Spectral hemispherical attenuation coefficient | μν μλ |
m−1 | Spectral radiant flux absorbed and scattered by a volume per unit length, divided by that received by that volume. |
Directional attenuation coefficient | μΩ | m−1 | Radiance absorbed and scattered by a volume per unit length, divided by that received by that volume. |
Spectral directional attenuation coefficient | μΩ,ν μΩ,λ |
m−1 | Spectral radiance absorbed and scattered by a volume per unit length, divided by that received by that volume. |
Usage
[edit]This template displays a table of radiometry coefficients for use in articles about radiometry. It may also serve as a navigation box at the end of corresponding articles.
Parameters
[edit]Documentation of parameters:
Parameter 1
[edit]1 = undefined or empty
The template will display the table's title "Radiometry coefficients".
1 = <number>
The template will display the table number as part of the table header in the following form: "Table <number>. Radiometry coefficients", where <number> is a placeholder for the number (or other table designation) given as parameter.