Study on high-speed high-temperature adaptive fuzzy PID control system

Based on the principle of photoelectric thermometry and adaptive fuzzy-PID control theory, a non-contact and high-speed embedded system for measure and control high temperature has been developed. The real-time information of process temperature was received by using photoelectric sensor and A/D conversion in the system, output power of temperature control module could be real-time adjusted, and the temperature of the objects could be controlled in the required range. Furthermore, the whole system has several characteristics, such as compact structure, small size, easy to carry and installation and can be embedded into machine equipment. High-frequency welding machine in the practical application of the test shows that the system with response speed, wide temperature range can be monitoring and control, high precision, greatly improved the quality of welding products, has broad application prospects.