The basic connotation and extension of the servo system
A servo system (servomechanism) is an automatic control system that enables an output control amount of an object to follow an arbitrary change of an input target (or a given value). Its main task is to control the power, zoom, transform and control according to the requirements of the control command, so that the torque, speed and position control of the drive device are very flexible and convenient. A servo system is a feedback control system used to accurately follow or reproduce a process. Also known as the follow-up system. In many cases, the servo system refers to a feedback control system in which the controlled amount (output of the system) is mechanical displacement or displacement velocity, acceleration, and its function is to make the mechanical displacement (or rotation angle) of the output accurately track the displacement of the input ( Or corner). There is no principle difference between the structural composition of the servo system and other forms of feedback control systems.
The servo system was originally used in the automatic driving, gun control and commander of the ship, and was gradually extended to many fields, especially automatic lathes, antenna position control, missile and spacecraft guidance. The servo system is mainly used to achieve the following purposes: 1 to control the high power load with a small power command signal. Artillery control and rudder control are typical examples. 2 In the absence of a mechanical connection, the remote output shaft is controlled by the input shaft to achieve remote synchronous transmission. 3 Make the output mechanical displacement accurately track electrical signals, such as recording and indicating instruments.
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