This lab is an application of feedback control for a temperature control device. Heat output is adjusted by modulating the voltage to a transistor. A thermistor measures the temperature. Energy from the transistor output is transferred by conduction and convection to the temperature sensor.
This lab teaches principles of system dynamics and control. In particular, this lab reinforces: (1) Dynamic modeling with balance equations (2) The difference between manual and automatic control (3) Step tests to generate dynamic data (4) Fitting dynamic data to a First Order Plus Dead Time (FOPDT) model (5) Obtaining parameters for PID control from standard tuning rules (6) Tuning the PID controller to improve performance
Download source files from: https://apmonitor.com/pdc/index.php/Main/ArduinoTemperatureControl
Post time: Jun-12-2017