Thermocouple probe incorporates small jet of inert gas to cool thermocouple. To measure gas temperatures, cooling jet is turned off momentarily, allowing thermocouple to heat up to near its melting point, then cooling is reapplied. Heating curve is recorded by high speed digital system. Computing system extrapolates final temperature thermocouple would have attained.
Thermocouples measure very-hot gas temperatures
NASA Tech Briefs ; 3 , 1
1978-06-01
Miscellaneous
No indication
English
Problems Encountered Using IrRh-Ir Thermocouples for Measuring Combustion Gas Temperatures
SAE Technical Papers | 1962
|Oxidation Protection for Thermocouples
NTRS | 1984
|Aero-Engine Pyrometer Thermocouples
Emerald Group Publishing | 1941
|Welding thermocouples to columbium
NTRS | 1978
|Heat-Conducting Anchors for Thermocouples
NTRS | 1987
|