Wien Law
This definition page has been automatically generated. You can help ExoDictionary by expanding, updating, or correcting it. |
This autostub has not yet had its initial copyediting proof and may contain significant formatting and even factual errors. You can improve Exodictionary by cleaning up the page markup and verifying that the definition is correct and then removing this tag. |
This autostub has not yet had its initial categorization proof and may be categorized incorrectly. You can improve Exodictionary by removing inappropriate categories and then removing this tag. |
Wien Law
</dt>
One of the radiation
laws which states that the wavelength of maximum radiation intensity for
a black
body is inversely proportional to the absolute
temperature of the radiating black body: λm = b/T where λm is the wavelength of maximum intensity; b
is a constant; and T is the absolute temperature. The Wien
displacement constant b is equal to 0.28978 centimeter-degree. Also called
Wien displacement law .
</dd>
This law, established experimentally by Wien in 1896, describes the
manner in which the wavelength of maximum radiation shifts toward shorter
values as the temperature of a radiator rises. It is to be distinguished from
Wien
distribution law which describes the variation with temperature of the
intensity of emission at any wavelength. Wien displacement law is used to
compute the color temperature of a radiator by insertion of its wavelength of
peak intensity into the above equation to compute T.
</dd>
References
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use