Mini Electric actuator china electric actuator hidraulic rotary actuator
In the process control system, the actuator consists of an actuator and a regulator. Adjustment mechanism through the implementation of components directly change the parameters of the production process, the production process to meet the predetermined requirements. The actuator receives the control information from the controller and converts it to the output of the actuator (such as angular or linear displacement output). It also uses the appropriate actuator, but the requirements and regulatory agencies are different. Actuators are installed directly at the production site, sometimes with harsh working conditions. Whether it can maintain normal work directly affects the safety and reliability of the automatic adjustment system.
(1) The actuator is divided into pneumatic, electric and hydraulic actuators according to the driving energy used.
(2) According to the form of output displacement, the actuator has two kinds of angle type and linear type.
(3) According to the law of motion, the actuator can be divided into switch type, integral type and proportional type.
(4) According to the input control signal, the actuator can be divided into several types which can input air pressure signal, DC current signal, electrical contact on-off signal and pulse signal.