Using annealing technology GMR linear sensor based on spin valve is fabricated.

This motor had unique structure design and used linear sensor as its position sensor.

The design and architecture implementation of AC servo control system for permanent magnet synchronous motor using linear Hall effect sensors as the motor feedback devices were presented.

To meet the requirements of better performance and lower cost in designing the control system for industrial sewing machines,this paper presents a design of AC servo control system for permanent magnet synchronous motor,which uses linear hall effect sensors as the motor feedback devices.

Two simplesinedriving methods that the rotor position detected by the linear Hall sensor and that the revolver is replaced by linear Hall sensor are proposed.

In first model, three-phase reference signal is directly obtained from the rotor position detected by the linear Hall sensor.

Based on multi-input multi-output (MIMO) nonlinear sensor, a novel method combined Ferguson-Srikantan test and RBF neural network regressing is proposed in this paper to detect and correct gross error data of sample set.

Based on the comparison with a variety of drive methods of stepping motors, drive circuit for adjusting and testing system of nonlinear sensor ---high-low drive circuit is designed.