It analyses the technological characteristics of position control accuracy,interpolation speed stability.

The overflow valve pressure hypothesis and pumps to the speed stability influence with the throttle valve match to the velocity modulation scope influence were analyzed, to enters the oil to reduce expenses to modulate velocity the return route design and the debugging has the certain enli.

After enumerating and analyzing some historic explanations,a new and all-sided view concludes: when considering flight path angle response of aircraft in the low dynamic pressure situation,speed stability,flight path stability and maneuverability show all be concerned.

The effect of friction torque,leakage and compressibility of oil and liquid on low-speed stability of hydraulic motor was studied.

In order to improve the velocity s stability of driving system powered by stepper motor,a method based on the principle of least-squares algorithm to correct the fractionized driving wave was put forward,according to the theory of fractionized driving and the analysis of the factors influencing the velocity stability.

This paper studies the velocity stability of rotary cylinder with eccentric load.

And reduce affect of loading change at system velocity by imput indemnify, Thus advance velocity stability of volume velocity modulation system.

In order to improve the accuracy of adjusting speed and the stability of rotating speed,the controller of DC motor with correction worknet was designed using the wavelet transformation which can extract the time-frequency informations of the wavelet coefficients of current,voltage and rotating speed to judge the faults and to correct speed.