In order to measure the blade surface temperature precisely,Pt / ITO thin film thermocouples are deposited on Al2O3 ceramic substrates by shadow mask technique and RF magnetron sputtering. The thermoelectric properties of the samples are tested by static calibration. The results show that the stability of thermoelectric power output and the Seebeck coefficient of the thin film thermocouple are gradually improved with the increase of annealing time; calibration curves of all samples are of good linearity; th...