How to overcome the two-phase hybrid stepping motor vibration and noise of the stepper motor rotates at low speed vibration and noise is its inherent shortcomings, general can adopt the following solutions to overcome: as A stepper motor works just in the resonance region, but by changing the reduction ratio of mechanical transmission to avoid the resonance zone: B USES with the function of subdivision drive, this is the most commonly used, the Facillimus via; C in step torque angulus minor stepper motricium, ut tres-phase vel quinque tempus stepper motricium: D AC Servo Motor fere omnino vincere vibrationem et strepitu et magnetica Damper.