It is the simplest form of continuous control that can be used in a closed-looped system.
Proportional control is a form of feedback control. One type of action used in PID controllers is the proportional control. Additionally, it is critical to understand feed-forward and feed-back control before exploring P, I, and D controls. The different types of error-based controls vary in the mathematical way they translate the error into an actuating signal, the most common of which are the PID controllers.
This type of process control is known as error-based control because the actuating signal is determined from the error between the actual and desired setting. Based on this error, the controller sends an actuating signal to the heating coil, which adjusts the temperature accordingly. The difference between the measured signal and set point is the error. The measurement signal is then compared to the set point, or desired temperature setting, of the controller. This measurement produces a measurement signal. A temperature sensor first measures the temperature of the fluid.
\): Temperature controller in a CSTRĪs shown in Figure 1, the temperature controller controls the temperature of a fluid within a CSTR (Continuous Stirred Tank Reactor).