Transmitter-receiver device of linear servo actuator and linear servo actuator

Disclosed is a transmitter-receiver arrangement of a linear servo actuator, the linear servo actuator comprising a stator assembly and a mover assembly, the mover assembly being axially linearly movable back and forth relative to the stator assembly, the transmitter-receiver arrangement being used to determine an axial position of the mover assembly relative to the stator assembly, the emitter is arranged in a manner of being capable of representing the axial movement of the mover assembly; and a receiver fixed relative to the stator assembly; wherein the emitter and/or the receiver are/is arranged in a mode of minimizing a divergent magnetic field generated when the linear servo actuator works, and the emitter can only do axial linear motion relative to the receiver or can only do rotary motion around the axis center line of the axis of the rotor assembly relative to the receiver. The invention further discloses a corresponding linear servo actuator. According to the transmitter-receiver device, adverse magn