Design and implementation of GUI based PID temperature programmer

摘要

A PC based temperature programmer designed by implementation PID algorithm. Standard ADC card is used for AID and DIA conversions. The error signals are pulse width modulated (PWM) and send to control the power. A software selectable input stage is designed for the selection of appropriate temperature sensor. Visual Basic 4.0/5.0 under Windows 95 is used to develop user friendly front panel and other programming algorithms.