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The automatic control system will use, for the regulation and quality control of processes and the environment. The control system is used in many industrial processes, a process is a device, plant, or system which is under control.
The measurement tools that are available for use as parts of automatic feedback control systems. one of these tools include high sensitivity electromechanical probes, scanning laser beams, electrical field techniques, and machine vision. Computer technology is required to implement some of these sensor systems.
The feed-forward control can anticipate the effect of disturbances that could affect the process, this type of control would sense and compensate these problems before it affects the process. This type of control has the limitation that it can’t completely compensate for the disturbance because of the variation and imperfection of the ...
The automatic voltage regulator would keep the terminal voltage of the system at the required value by the feedback control. What are the major components of an automatic voltage regulator? The major components of the AVR are the two closed-loop control systems and both of them have separate gate control, thyristor set, and DC excitation equipment.
The cascade control can be described as a method of feedback combining. In this method of control, the inner loop controller would get its set-point from an outer-loop control. So in this control system, there would be two controllers and the output of one controller is the input for the other one. So in this …
The next step in complexity after simple automatic control is to automate the adjustment of the setpoint for a process controller. A common implementation of this concept is the automatic cycling of setpoint values according to a timed schedule. An example of this is a temperature controller for a heat-treatment furnace used to temper metal ...
These problems are avoided by using automatic control (closed loop). The job of the instrument technician is to make sure that this type of control operates correctly. Modern household appliances now use automatic control to make work easier. For example:-
Feedback control is widely used in most automated systems, the major parts of a feedback control system are input, controlled process, sensing element, output, and final control element. Feedback is required to modify the control signal in case of any disturbance if the process variables deviate from the setpoint, so basically, feedback is ...
The below image is an example of the feedback control, transmitter would measure the fluid temperature, and based on that it would open the hot steam valve to maintain the fluid temperature. This type of control would correct the problem after it has occurred, we can use feedback control to do the manual and automatic control. In this type of ...
Table of ContentsProcessList few examples of Process Industries.Process Control Process VariableWhat are the main goal of automatic process control?What is the basic functions of automatic controller?Types of ControlOpen Loop ControlClosed Loop ControlControl LoopsSingle Control LoopsMultivariable LoopsSensors or TransducersPressure sensorsTemperature sensors Flow sensorsLevel SensorsTypes of ...