Design for a Small High-efficiency and High-precision Simulated Blackbody Controller

This paper explains the urgent need for, and technological bottleneck of, current portable general-use infrared detectors, and several proposals have been put forward and carried out. Specifically, the TEC semiconductor cooler was adopted to achieve the positive and negative temperature difference required by the infrared detector based on the Peltier effect; a fuzzy-PID control algorithm was employed to achieve high-precision control over the output temperature difference; and the high stability AD acquisition circuit and Newton's iteration algorithm were adopted to realize a design method for high-resolution and high-accuracy temperature indication, thus to achieve real-time and automated control of the blackbody.