Self-calibration thermal resistance type heat flow measuring device and measuring method

The invention provides a self-calibration thermal resistance type heat flow measurement device and a measurement method, a sensor module comprises a measurement unit A, a measurement unit B and a calibration unit, and the voltage and current of the calibration unit and the voltage values of the measurement unit A and the measurement unit B are sent to a signal acquisition module; the signal acquisition module sends an obtained signal to the signal processing and control module, the signal processing and control module processes the acquired voltage values of the measurement unit A and the measurement unit B to obtain a heat flow measurement value, and if the voltage values of the measurement unit A and the measurement unit B are different, the measurement unit A and the measurement unit B are corrected. According to the invention, the defects that the result is inaccurate, is difficult to find and cannot be corrected in the measurement process are overcome, the situation that the sensor is difficult to disass