Temperature measurement method of heat protection structure with gradient distribution of temperature

The present invention provides a temperature measurement method of a heat protection structure with the gradient distribution of temperature. The method comprises a step of using thermocouple wire spiral at a temperature measuring end to improve armoured thermocouples to obtain novel armoured thermocouples, a step of coating the novel armoured thermocouples with high temperature glue and installing the novel armoured thermocouples on a heat protection structure, a step of gathering the wires of all novel armoured thermocouples installed on the heat protection structure at different positions and different depths and connecting the wires to collection equipment in a unified way, and a step of taking the collection end of the collection equipment as a measurement cold end, and directly carrying out cold end compensation on thermocouple in-rail temperature measurement. In summary, by using the method of the present invention, the high precision and full process temperature measurement problem of the heat protect