Feedback and Control Systems

Control System

The backbone of all control systems that manages, commands, directs, or regulates the behavior of other devices or systems.

Feedback

Information that managers use to correct their organization's actual performance.

Feedback Control

A process that managers use to evaluate how effectively their teams meet the stated goals at the end of a production process.

Positive Feedback

In a positive control system, the setpoint and output values are added.

Closed-loop Systems

Using feedback in closed-loop systems improves control by automatically adjusting the controller output to reduce the error.

Control Systems

Used in manufacturing to control machinery, optimize production, and ensure consistent quality.

Negative Feedback

In a negative control, the setpoint and output values are subtracted.

Thermostat Sensor

The feedback sensor that measures the room temperature and compares it to the desired temperature or set point.

Control System

A set of mechanical or electronic devices that regulates other devices or systems by way of control loops.

Controller

The brain that receives feedback about the body's temperature and regulates it.

Overall Performance

The ability to track the process output and, thus, track the system's overall performance.

Controlling Processes

Large industrial control systems are used for controlling processes.

Feedback Controller

Measures the output of a process and manipulates the input to drive the process variable toward the desired setpoint.

Closed-Loop System

A control system that maintains a relationship of one system variable to another by comparing functions of these variables.

Error

The difference between the actual and desired value.

Electronic System

A physical interconnection of components or parts that gather various amounts of information together.

Interconnection System

A practical aspect of electronic systems that can be combined in series or parallel to form bigger systems.

Control System

Any subsystems can be represented as a simple block with an input and output.

Control Theory

A combination of various elements connected as a unit to direct or regulate itself or any other system.

Camshaft Position Sensor

A magnetic sensor used to measure the camshaft's speed and the position of each piston.

Control Theory

Positive and Negative feedback are the two major classifications of feedback used in control systems.

Feedback

Considered a major part of a closed-loop control system that utilizes negative feedback to provide a sampled output signal back to the input.

Audio Feedback

The ringing noise sometimes present in sound systems, often described as squealing or screeching.

Feedback Signal

This signal is used to correct the variation in achieved output from the desired one in the control system.

Negative Feedback

The input and output signals are of different phases, thus the two are subtracted.