blackbody

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Related to blackbodies: Black body radiation

black·bod·y

 (blăk′bŏd′ē)
n. pl. black·bod·ies
A theoretically perfect absorber of all incident radiation.

black•bod•y

(ˈblækˈbɒd i)

n., pl. -bod•ies.
a hypothetical body that absorbs without reflection all of the electromagnetic radiation incident on its surface.
[1700–10]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.blackbody - a hypothetical object capable of absorbing all the electromagnetic radiation falling on it; "a black body maintained at a constant temperature is a full radiator at that temperature because the radiation reaching and leaving it must be in equilibrium"
natural object - an object occurring naturally; not made by man
References in periodicals archive ?
He said that for all we know, there could be perfect blackbodies in our world but since we cannot see them we cannot prove them.
Yet, we do not make blackbodies from materials which have low absorptivities, because these objects have elevated reflectivities, not because they are not infinite" [10, p.
1] spectral channels can be considered a good estimate also for the other spectral regions, since the main source of the calibration error is the uncertainty with which the temperature of the reference blackbodies is known (Palchetti et al.
Subjects covered include blackbodies and other sources, source/receiver flux transfer calculations, the optical properties of materials, and a variety of others related to the central examination.
An optional Thermography Package improves the camera s ease of use by providing Telops patent pending, Real-Time Temperature Calibration algorithm which offers either raw or thermally calibrated data in real-time without any need for external blackbodies.
They established a tungsten halogen lamp and a tungsten strip lamp as field-deployable irradiance and radiance secondary standards traceable to blackbodies at NBS.
NO IDEA if the theory of relativity has a clause to explain this or if it was sheer coincidence that when physicists across the world were flipping through ' Quantum', their peers from the Massachusetts Institute of Technology ( MIT) revealed newer aspects of Max Planck's famous 1900 experiment on non- reflective objects -- the blackbodies.
Wien's law describes blackbodies - objects that are essentially perfect absorbers and radiators.
Bohr, who was then working in England under the great Ernest Rutherford, seized on the idea of the quantum to solve the difficulty In 1905, to solve some difficulties having to do with the radiation of blackbodies, Max Planck had proposed that energy is radiated in discrete packets called quanta rather than in a continuous stream.
As a consequence, orders for our blackbodies increased to defense contractors during the first quarter.
Laboratory blackbodies are usually brought to temperature using conduction.
The onboard calibrators such as blackbodies and the sensors such as spectral radiometers should be characterized and calibrated using SI traceable standards.