The motor and the motor module are the key function of automatic productions, testing, and assembly equipment. With the continuous development of industrial automation and intelligence, the accuracy and dynamic performance requirements of the motor and the motor module is also getting higher and higher. In related applications, the nanometer time-grating displacement sensor is connected to the control system. The device itself has the function of high positioning accuracy in the exposed-loop control state, to achieve more accurate, faster, and more stable control of corner or position , meeting the core requirements of end users such as rapid positioning and stable operation.