Color, Temperature

Color, Temperature

 

the color of the luminescence from a heated metal alloy, which is determined by the metal’s temperature. Some typical temperature colors for steel are dark brown (550°C), dark red (680°C), cherry red (770°C), bright red (900°C), yellow (1000°C), and white (1300°C). Temperature colors may vary slightly with illumination. Before the advent of pyrometers and suitable testing and measuring instruments, the temperature of heated metal was determined from the temperature color.

References in periodicals archive ?
Fosbury and his colleagues analyzed spectra of the energized gas to discover the color, temperature, and therefore weighty nature of the stars.
It uses laser triangulation and has a dynamic laser feedback loop that provides accurate measurement even when there are changes in speed, ambient light, color, temperature of material or plant environmental conditions.
The software regulates color, temperature, storage of display parameters and side-blanking, while also comparing new source frequencies to existing setups in memory.