Summary:What is the working principle of the vacuum coating machine?
In order to actually realize the state...
In order to actually realize the state feedback control law, it is necessary to use the input and output of the control object that can be directly measured, and establish a dynamic system to determine the state according to the vacuum coating machine, which is called an observer. The dynamic system whose control law itself is determined by the output is called a dynamic compensator.
One of the biggest characteristics of the control system design based on the state equation is that the design of the state estimator is carried out independently after the control law is determined.
That is to say, except for the structure of the control object, it is calculated by algorithm.
In this way, a system that not only includes the control object including the external environment, but also makes the closed loop stable and can track the target value is formed. However, the most difficult problem for designers of vacuum coating machine manufacturers is whether to use the evaluation function or the method of pole configuration after specific design indicators are given.
In order to solve this problem, the evaluation function is usually changed, and then the optimal evaluation function is found according to the change of the control system characteristics, which needs to be repeated several times.
The system control of the vacuum coating machine often adopts the form of stepped or block linear free system output to express external disturbance and target value. Therefore, in modern control theory, such a control system is called "servo system" in particular.
The design of this servo system is carried out as follows: establish an external environment model including control objects such as disturbances and target values, and seek state feedback laws for the entire system combined with control objects.Thermal Evaporation Vacuum Coating Machine