Two wire thermocouple: Frequency response in constant flow

Experimental measurements are made with a novel two wire thermocouple. Signals from two wires of unequal diameters are recorded from the thermocouple suspended in constant flow with a periodic temperature fluctuation. It is demonstrated that the reconstructed signal from the two wire thermocouple requires no compensation for ω≤2ω1 where ω1 is the natural frequency of the smaller wire. A compensation factor is recommended for larger frequencies ω≳2ω1.