Thin skin calorimeter is a kind of transient heat flux transducer commonly used in aerothermodynamics and thermal protection tests

which is based on assumption that the back surface is adiabatic with the circumstances. However

in practical application

heat transfer between back surface and adjacent environment is unavoidable

which will lead to measurement error due to the difference between actual back surface measured temperatures with that in ideal situation. Thin skin temperature response equations are deduced for with and without heat loss from the back surface to the substrate separately

and the equations are validated by numerical analysis. Based on this

influences of heat conduction loss on measurement result are analyzed

correction equation is given

and the correction results are evaluated.