A High-precision Thermostat Bath Temperature Control System

It requires high precise to control temperature during the thermostat bath thermo physical properties measurement.Aimed to above problem,a control method based on one-dimensional fuzzy and increment PID control is given.This control method chooses fuzzy control or increment PID control by deviation value between the measured temperature and the setting temperature so as to finish high-precision temperature control.The designed control system uses the C8051F060 as main controller,and has on-line temperature con trol、historical temperature data storage、real-time data communication with the PC etc.The results of practice test show that the system temperature response is fast,temperature degree of fluctuation is small,a practical need for use can be satisfied fully.