Abstract:This paper introduced a temperature measurement system based on Pt Resistance and thermocouple, a detailed analysis of the measurement principle and measurement error. The system uses AD7792 chip as the acquisition, be able to use a variety of Pt Resistance and thermocouple temperature measurements to achieve, and measure the results of real-time display on the OLED. Experimental results show that the system is high accuracy, versatility, reproducibility and easy operation.