A method of obtaining the temperature field of the surface of turbine vane in hot wind tunnel utilizing infrared thermography measurement was presented. After the acquirement of infrared thermograms

overall corrections were implemented pertaining to the specific disturbance of hot wind tunnel caused by variations in the transmission rate of quartz glass window with the vane surface temperature

as well as by thermal radiation of gas components such as carbon dioxide and water vapor. A geometrical transformation could help reproducing the temperature field of the vane surface

by taking into consideration the curvature of the vane surface. The results show that corrections as large as 110-140K exists for infrared thermography measurement of this testing in hot wind tunnel. Under hot gas circumstances

temperature correction based on gas conditions is indispensable.