Bernard electric actuators use novel structural components. The servo amplifier adopts a microprocessor system, and all control functions can be realized by editing. It also has a digital communication interface, which has the HART protocol or field bus communication function, and becomes a node in the field bus control system. Some servo amplifiers also use frequency converter technology, which can more effectively control the action of the servo motor. The reducer adopts a novel transmission structure, stable operation, high transmission efficiency, no crawling, and low friction. The position transmitter adopts new technology and new methods, and some adopts Hall effect sensor, which directly senses the longitudinal or rotational movement of the valve stem, realizing non-contact positioning detection; some adopts a special potentiometer with a ball bearing in the potentiometer And a resistive sheet made of special conductive materials; some non-contact rotation angle sensors using magnetoresistance effect.
