blackbody temperature


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blackbody temperature

[′blak¦bäd·ē ‚tem·prə·chər]
(thermodynamics)
The temperature of a blackbody that emits the same amount of heat radiation per unit area as a given object; measured by a total radiation pyrometer. Also known as brightness temperature.
References in periodicals archive ?
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.
The responsivity at locations, 0.268 m and 0.684 m, obtained from a single data point at a blackbody temperature of 2773 K is also included in the Table.
The maximum heat flux obtained at station C, at a distance of d = 43 cm from the aperture with the long extension, is about 15 kW/[m.sup.2] at the highest blackbody temperature of 2773 K.
The types of variable-temperature blackbodies available in the LLT facility Blackbody Temperature range Type of ([degrees]C) thermometer Water bath 15 to 90 PRT Oil bath 90 to 200 PRT Cs heatpipe 350 to 700 Au/Pt TC Na heatpipe 600 to 950 Au/Pt TC Table 17.
The calibration curves are stored in the camera system's memory as a series of numeric curve-fit tables that relate radiance values to blackbody temperatures. When the system makes a measurement, it takes the digital value of the signal at a given moment, goes into the appropriate calibration table, and calculates temperature.
Instead, blackbody temperatures began to be measured ab initio using FRs traceable to absolute detectors (52-54).