（1） Definition and Function
A servo control system is a complex system composed of multiple parts, including motion controllers, servo motors, drivers, sensors, etc. Its main function is to measure and provide real-time feedback on the motion status of the controlled object through sensors based on input command signals. After processing by the controller, it outputs control signals to drive the servo motor to move according to predetermined trajectories, speeds, and accelerations, achieving precise control.
（2） Composition and Working Principle
Servo control systems generally consist of controllers, encoders, sensors, actuators, and other components. Among them, the controller is responsible for receiving instruction signals and processing them to generate control signals; The encoder is responsible for measuring the position and speed of the servo motor and feeding back the measured values to the controller; Sensors are responsible for real-time measurement of the motion status of the controlled object; The executing agency is responsible for converting the control signal into the motion of the servo motor.
The working principle of servo control system is based on feedback control principle. By continuously comparing the command signal and feedback signal, the deviation signal is calculated, and the control signal is adjusted accordingly, so that the motion state of the controlled object gradually approaches the state required by the command signal.
（3） Application and technical characteristics
Servo control systems are widely used in fields such as aerospace, precision manufacturing, and robotics technology. Its main technical features include high-precision control, high dynamic response, high stability, and easy control integration. For example, in the aerospace field, servo control systems can achieve high-precision control of aircraft attitude; In the field of precision manufacturing, servo control systems can achieve precise control over the machining process; In the field of robotics, servo control systems can achieve precise control of robot motion.
