controlled parameter
1.Using the RS232Cof 9 needles and 25 needles to copy the CNC parameter and the PMC parameter of numerical controlled machine tool into the computer through the super terminal of the computer,keeping the parameter from losing.
2.Because the practical controlled object of PH asks for a high precision ,a parameter self-adjustment fuzzy system of PH is adopted,which aimed at the PH value in the process of ferment is lag, nonlinear, and time-variable, the parameter self-adjustment fuzzy control process adopts VB6.0, the data exchange between "King View" and "VB" adopts dynamic data exchange DDE to realize.
3.The inner cannon image capturing can be controlled flexible by setting the serial port communication and image capturing card parameter, such as the capturing modes, the adding characters, the locating flaws, the scaling distance and the autopreset data controlling.
4.The problem is the design of adaptive controller for H ∞ state feedback such that the closed system ensures input to state to be stable. And the L 2 gain from the disturbance input to the controlled output is not larger than a prescribed value for all admissible parameter uncertainties.
5.2. in growing cracks, so long as the conditions of J-controlled crack growth are met, the J-integration is still a fracture parameter, J_R-curve represents the nature of a material exactly, and J_(IC) is a point in thc J_R curve;
6.The analysis to the parameter of the NCO gives a way to design the more high powered numerically controlled oscillator.
7.In order to adjust the parameter conveniently, the driving systems of the main motion are independently, and their velocities are controlled by two different transducers.
8.The trade-off parameter between the FAB diffusion and the histogram modification is controlled by the variance of the image noise and the image histogram.
9.In the positioning servo-system,which generally is configured by the D.C.pulse width modulator (PWM) velocity governing system and position servo-loop,the parameter perturbance of PWM velocity loop really exist by reason of such as the load behavior;power voltage supply;operating setting value, etc.［1,2］，and it cannot be ignored.By using the identification technique to form the mathematical model of the system,authors have confirmed the facts.Therefore,to design the discrete sliding mode controller (DSMC) of the positioning servo-system,the perturbed parameters value bounds of the PWM velocity loop,which is as the controlled plant of position servo-loop,should be accounted.Consequently,the design principle of DSMC for accounting system with parameter perturbance is proposed by the authors.The proposed method can ensure the stability of system with parameter perturbance and the behavior of non-overshoot,fast precise positioning.In order to reveal the effects of the design method,the comparative research work is done by the authors.Also,it has been tested in an industrial experiment,the results proved it is satisfactory.
10.To measure the concerned parameter at production line, a highly automatic steady-state test bench based on the old version is presented in this paper, on which the valve lift and test pressure are all computer-controlled.
