According to the mathematical model of the heating power of the polyimide film heater and the maximum power density of the polyimide, the risk point of the heating circuit of heat flux simulator can be found. The current range of different heating circuit can be calculated and the range can be reduced in case of the detection efficiency. After the constant current is input to the heating circuit, the temperature profile of the heating circuit is given according to the heating circuit design. Compared with the observation result of the thermal imager, it is quick to judge whether the heating circuit of heat flux simulator is correct and find the problem location as while. The new method ensures the detection of safety while improving the detection efficiency.
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