blackbody emissive power

См. также в других словарях:

• emissive power — the heat per unit time (and per unit area) emitted by an object. For a blackbody, this is given by the Stefan Boltzmann relation …   Mechanics glossary

• лучеиспускательная способность абсолютно чёрной поверхности — — [А.С.Гольдберг. Англо русский энергетический словарь. 2006 г.] Тематики энергетика в целом EN blackbody emissive powerEb …   Справочник технического переводчика

• Black body — As the temperature decreases, the peak of the blackbody radiation curve moves to lower intensities and longer wavelengths. The blackbody radiation graph is also compared with the classical model of Rayleigh and Jeans …   Wikipedia

• Stefan–Boltzmann law — The Stefan–Boltzmann law, also known as Stefan s law, states that the total energy radiated per unit surface area of a black body in unit time (known variously as the black body irradiance, energy flux density, radiant flux, or the emissive… …   Wikipedia

• surface emissivity — the relative emissive power of a body compared to that of an ideal blackbody. In other words, the fraction of thermal radiation emitted compared to the amount emitted if the body were a blackbody. By definition, a blackbody has a surface… …   Mechanics glossary

• stefan-boltzmann law — ˈshteˌfänˈbōltsˌmän noun Usage: usually capitalized S&B Etymology: after Josef Stefan died 1893 Austrian physicist, its formulator, & Ludwig Boltzmann died 1906 Austrian physicist who first demonstrated it : a statement in thermal radiation: the… …   Useful english dictionary

• heat — heatable, adj. heatful, adj. heatless, adj. heatlike, adj. /heet/, n. 1. the state of a body perceived as having or generating a relatively high degree of warmth. 2. the condition or quality of being hot: the heat of an oven. 3. the degree of… …   Universalium

• emissivity — The giving off of heat rays; a perfect “black body” has an e. of 1, a highly polished metallic surface may have an e. as low as 0.02. * * * emis·siv·i·ty .em ə siv ət ē, .ē .mis iv n, pl ties the relative power of a surface to emit heat by… …   Medical dictionary

• rayleigh-jeans law — ˈjēnz noun Usage: usually capitalized R&J Etymology: after Baron J. W. S. Rayleigh and Sir James Hapwood Jeans died 1946 English physicist : an approximation in respect to thermal radiation: the emissive power of a blackbody at absolute… …   Useful english dictionary

• Color temperature — The CIE 1931 x,y chromaticity space, also showing the chromaticities of black body light sources of various temperatures (Planckian locus), and lines of constant correlated color temperature. Color temperature is a characteristic of visible light …   Wikipedia

• Thermal radiation — is electromagnetic radiation emitted from the surface of an object which is due to the object s temperature. Infrared radiation from a common household radiator or electric heater is an example of thermal radiation, as is the light emitted by a… …   Wikipedia