Method and system for gas temperature measurement

A temperature measurement system comprising:

• at least one temperature measurement probe comprising:
• at least one hollow filament configured to emit thermal radiation in a predetermined and substantially continuous wavelength band at least partially representative of a temperature of said at least one hollow filament, said at least one hollow filament having a first diameter and a first emissivity;
• and
• at least one thin filament extending within at least a portion of said at least one hollow filament, said at least one thin filament configured to emit thermal radiation in a predetermined and substantially continuous wavelength band at least partially representative of a temperature of said at least one thin filament, said at least one thin filament having a second emissivity and a second diameter less than the first diameter;
• an optical system configured to receive at least a portion of the thermal radiation emitted from said at least one thin filament and said at least one hollow filament, said optical system comprising a detector array configured to:
• generate first electrical signals at least partially representative of the thermal radiation received from said at least one hollow filament;
• and
• generate second electrical signals at least partially representative of the thermal radiation received from said at least one thin filament;
• and
• a controller communicatively coupled to said detector array, said controller configured to:
• transform the first electrical signals to a first temperature indication at least partially as a function of at least one of the first diameter and the first emissivity;
• and
• transform the second electrical signals to a second temperature indication at least partially as a function of at least one of the second diameter and the second emissivity.