The position sensor converts the mechanical position of the electric actuator into an electrical signal supply to the electrical gas control portion to achieve a position control;
The electric actuator is an executive unit in an industrial automation system, which is widely used in pressure, temperature and flow control in electricity, chemical, petroleum, metallurgical and other industries. The electric actuator is used in the industrial site and the valve supporting, which is an electromechanical field device.
Since there is a sliding terminal in the electric actuator, it is easily wear, the life is short, and there is a fixed dead zone, and it is difficult to install freely, it is difficult to implement the cover debugging.
After many years of development, the electric actuator has been developed from the primary potentiometer to today's absolute position encoder, has changed multiple changes.
In order to enable the electric actuator to detect and feedback to the valve in the running process to ensure that the opening degree of the valve is important at the designated position, the position sensor is very important.
More and more factories adopt automatic control, and manual operation is replaced by machinery or automation equipment. It is required that the electric actuator can play an interface between the control system and the mechanical movement of valves, and the electric actuator is required to enhance the safety performance and environmental protection performance. In some dangerous situations, automatic actuator device can reduce personal injury.