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).
