black body

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  • noun

Synonyms for black body

a hypothetical object capable of absorbing all the electromagnetic radiation falling on it

References in periodicals archive ?
In the affected channels of GOES--8 and GOES--10 sounders, NIST measurements done at the on-orbit operational temperature conditions disagreed with SRFs in use by NOAA and also were found to be more consistent with on-orbit radiance observations at known blackbody temperatures, thus explaining the possible discrepancy (6).
In addition, the experimental justification, for setting blackbody temperatures, was overlooked.
For each position, the blackbody temperature was varied to obtain different heat-flux levels.
Because the former angle is larger than the latter one, geometrical optics suggests that the total power detected depends only on the blackbody temperature and a geometrical factor related to the pinhole aperture, detector optics, and relative separation, because the detector pupil is overfilled.
The initial operation has demonstrated long-term stability of the blackbody temperature within these limits.
NIST uses a variable temperature blackbody as a standard of spectral radiance to provide its spectral radiance and irradiance calibration services (148, 149); the blackbody temperature is also determined using a gold-point blackbody and spectral radiance ratios.
Instead, blackbody temperatures began to be measured ab initio using FRs traceable to absolute detectors (52-54).