Research and implementation of electromechanical actuator system based on magnetoresistive sensor

In order to meet the requirements of high reliability, miniaturization and low cost, a dual-redundancy electromechanical actuator system based on magnetoresistive sensor is designed in this paper. The system adopt the dual-redundancy brushless motor and dual-redundancy magnetoresistive sensor with high precision, and design the control law and monitoring scheme according to the system requirements. The environmental test and performance test verify that the system has the characteristics of high reliability, low cost and small size meet the requirements of rudder performance.