Temperature of heated spherical specimen of opaque material with specular surface measured by optical pyrometry, without need to correct for effect of reflected thermal radiation upon measured radiances, provided reflections eliminated. To prevent unwanted reflections, apparatus must be arranged so field of view of pyrometer does not contain any lines of sight to image of wall. Particularly useful for making accurate noncontact measurements of levitated specimens of molten metal and other materials in containerless processing.
Pyrometry Without Spurious Reflections
NASA Tech Briefs ; 17 , 10
1993-10-01
Miscellaneous
No indication
English
Multiwavelength Pyrometry To Correct For Reflections
NTRS | 1993
|SAE | 1987
SAE | 2022
SAE | 1980
SAE | 2005