Automatic control systems (automatic control systems) is the control system allows the production process or other processes as desired or predetermined law proceedings in the absence of direct participation. Automatic control system is the main means of achieving automatic. Referred to the automatic control system. Automatic control system consists of: a controller controlled objects, industrial products supplier, actuators and transmitters of four links. After 20 years of development, China's industrial automatic control system equipment manufacturing industry has made great progress, especially since the 1990s, sales of industrial products, China's output of industrial automation control system equipment manufacturing industry has remained at more than 20% annual growth . 2011, Chinese industrial automation control system equipment manufacture industry has made remarkable achievements. Annual industrial output value of 205.604 billion yuan; sales revenue 199.673 billion yuan, an increase of 24.66%; to achieve a total profit of 20.284 billion yuan, an increase of 28.74%. Domestic automatic control systems have been in thermal power, chemical fertilizer, oil refining made a breakthrough. Open-loop control system in the open-loop control system, the system output by only control input, industrial products, control accuracy and interference suppression characteristics than the poor. Open-loop control system, based on the chronological logic control is called the sequential control system; the sequence control means, detection elements, actuators and controlled industrial objects formed. Mainly used to control and robotic and automatic production line machinery, chemicals, material handling and transportation process. Closed-loop control system closed loop control system is built on the basis of the principle of feedback, use the same amount of deviation of the output expected value to control the system, get better control performance. Closed loop control system, also known as a feedback control system. A given signal classification, industrial product prices, the automatic control system can be divided into constant control system, servo control systems and process control systems. Constant setpoint change control system requires a certain amount of system output accuracy close to the system given desired value. As the production process of temperature, pressure, flow, liquid level, motor speed and other automatic control system belongs to the permanent value of the system. Servo control system setpoint by an unknown function of time is required to follow the change in the output setpoint. If with satellite radar antenna system. Process control system for a given value by a certain function of time. Such as program-controlled machine tools. Sell ??Industrial Products Industrial Products _ _ Xi Connaught Electrical and Mechanical (view) provided by the Henan learning Connaught Electrical and Mechanical Equipment Co., Henan Xi Connaught Electrical Equipment Co. (www.hnxinuo.com) is a professional engaged in "passive harmonic control, active filter control, reactive power compensation, power engineering, power transmission project," the company. Since its inception, we adhere to the "good faith, sound management" approach, the courage to participate in healthy competition in the market, so that the "own brand" brand has a good reputation. We adhere to the "service first, customer first" principle, so that learning Connaught Electrical and Mechanical win the trust of customers in all electronic, electrical products processing, and establish a good corporate image. Special Note: This information is for reference only pictures and information, please contact us to obtain the most accurate information, thank you!