Open Loop Control System Closed Loop Control System
Feedback Reference Input
Error Signal Controller
Actuator Sensor

 

A control system where the output is fed back to the input for continuous monitoring and adjustment. A control system where the output is not fed back to the input.
The desired value or setpoint that a control system tries to achieve. Information about the system's output that is used to adjust the system's input.
The component of a control system that calculates the necessary adjustments to minimize the error signal. The difference between the reference input and the actual output of a control system.
A device that measures a physical quantity and converts it into an electrical signal for the control system. The part of a control system that converts the controller's output into a physical action or signal.

 

Proportional Control Integral Control
PID Control Setpoint
Error Derivative
Electrical Actuator Solenoid

 

A control strategy that accumulates the error signal over time to eliminate steady-state errors. A control strategy where the controller's output is proportional to the error signal.
The desired value or target value that the system aims to achieve. A control algorithm that adjusts the output based on the proportional, integral, and derivative terms.
A control strategy where control output is proportional to the rate of change of the error signal. The difference between the desired value and the actual value of the controlled variable.
An electromagnetic device that uses a coil of wire to generate a magnetic field, which in turn produces mechanical motion. A device that converts electrical energy into mechanical energy to produce linear or rotary motion.

 

Stepper Motor Brushless DC Motor
Linear Actuator Piezoelectric Actuator
Servo Motor Pulse Width Modulation

 

A motor that uses electronic commutation instead of brushes to control the current flow in the windings, resulting in better efficiency and longevity. A type of electrical actuator that moves in discrete steps, based on digital pulses, allowing for precise control.
A type of actuator that uses the piezoelectric effect to generate motion when an electric field is applied. An electrical actuator that produces linear motion, often used in applications such as robotics or automation systems.
A technique used to control the position of a servo motor by varying the width of electrical pulses. A motor that operates as a closed-loop system, using feedback to control the position, speed, and torque accurately.